Geoffrey de MANDEVILLE Earl of Essex
1Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 5:126, 5:691, Los Angeles Public Library, 929.721 C682.
2Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), pp. 6, 71, Los Angeles Public Library, 929.722 S215.
3Sanders, I., English Baronies, p. 12 note 9.
4Brand, Paul A., Earliest English Law Reports (London: Selden Society, 1996.), 1:84-91, Library of Congress, KD194 1216.
5Stephen, Sir Leslie & Sir Sidney Lee (Editors), The Dictionary of National Biography: From the Earliest Times to 1900 (Oxford, England: Oxford University Press, 1993.), 3:317, Family History Library, 920.042 D561n 1993.
6Cokayne, G., CP, 5:691.
Isabel of GLOUCESTER Countess of Gloucester
1Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 29, Los Angeles Public Library.
2Faris, David, Plantagenet Ancestry of Seventeenth-Century Colonists (Boston: New England Historic Genealogical Society, 1999. [2nd Edition]), p. 279, Los Angeles Public Library, Gen 974 F228 1999.
3Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 5:127, 7:141, Los Angeles Public Library, 929.721 C682.
4Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), p. 6, Los Angeles Public Library, 929.722 S215.
5Sanders, I., English Baronies, p. 71 note 7.
6Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 9, Family History Library, 942 D5rd.
7Stephen, Sir Leslie & Sir Sidney Lee (Editors), The Dictionary of National Biography: From the Earliest Times to 1900 (Oxford, England: Oxford University Press, 1993.), 3:317, Family History Library, 920.042 D561n 1993.
8Cokayne, G., CP, 5:689-91.
9Cokayne, G., CP, 5:691.
Sir Hubert de BURGH Earl of Kent
1Paul, James Balfour, The Scots Peerage (Edinburgh: D. Douglas, 1904-14.), 1:5, Los Angeles Public Library, 929.72 P324.
2Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 94-29, Los Angeles Public Library, Gen 974 W426 1992.
3Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 7:133-142, Los Angeles Public Library, 929.721 C682.
4Boyer, Carl, Medieval English Ancestors of Robert Abell (Santa Clarita, California: C. Boyer, 2001.), p. 40, Los Angeles Public Library, 929.2 A141-2.
5Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), pp. 6, 101, Los Angeles Public Library, 929.722 S215.
6Sanders, I., English Baronies, p. 35 note 4.
7Ellis, Clarence, Hubert de Burgh: A Study in Constancy (London: Phoenix House, 1952.), p. 192, Los Angeles Public Library, 92 B9555El.
8Stephen, Sir Leslie & Sir Sidney Lee (Editors), The Dictionary of National Biography: From the Earliest Times to 1900 (Oxford, England: Oxford University Press, 1993.), 3:315-321, Family History Library, 920.042 D561n 1993.
9Cokayne, G., CP, 5:691, 5:701.
10Dugdale, William, Monasticon Anglicanum (London: Longman, Hurst, Rees, Orme & Brown, 1817-1831. FHL BRITISH Film #496,906.), 6 (1): 487, Family History Library.
11Moor, Charles, Knights of Edward I (London: Harleian Society Publications, 1929.), Los Angeles Public Library, Gen 942.005 H284.
12Cokayne, G., CP, 7:141.
Isabel of GLOUCESTER Countess of Gloucester
1Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 29, Los Angeles Public Library.
2Faris, David, Plantagenet Ancestry of Seventeenth-Century Colonists (Boston: New England Historic Genealogical Society, 1999. [2nd Edition]), p. 279, Los Angeles Public Library, Gen 974 F228 1999.
3Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 5:127, 7:141, Los Angeles Public Library, 929.721 C682.
4Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), p. 6, Los Angeles Public Library, 929.722 S215.
5Sanders, I., English Baronies, p. 71 note 7.
6Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 9, Family History Library, 942 D5rd.
7Stephen, Sir Leslie & Sir Sidney Lee (Editors), The Dictionary of National Biography: From the Earliest Times to 1900 (Oxford, England: Oxford University Press, 1993.), 3:317, Family History Library, 920.042 D561n 1993.
8Cokayne, G., CP, 5:689-91.
9Cokayne, G., CP, 7:141.
Llywelyn "The Great" ab IORWERTH
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), 27-27, 29A-27, 132C-29, 176-7, Los Angeles Public Library, Gen 974 W426 1992.
2Weis, Frederick Lewis, The Magna Charta Sureties, 1215 (5th ed., Baltimore: Genealogical Publishing Co., 1999.), 28A-3, 41-5, 41B-5, 114-2, 122A-4, Los Angeles Public Library, 929.273 W426 1999.
3Sheppard, Walter Lee, "Joan, Princess of Wales, Daughter of King John," The American Genealogist 35:1 (Jan 1959), p. 30, Los Angeles Public Library.
4Encyclopedia Britannica.
5Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 1:22, 2:304, 2:307, 5:373, 5:642, Los Angeles Public Library, 929.721 C682.
6Weis, F., Ancestral Roots 7, 236-7, 246-30, 252-30, 260-31.
7Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 51, Los Angeles Public Library, 929.729 D263.
8Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 28, Family History Library, 942.9 D2ba.
9Finton, Kenneth Harper, "The Mother of Gwladys Ddu," The Plantagenet Connection (Summer/Winter 2002) ([HT Communications, P.O. Box 1401; Arvada, Colorado 80001]), p. 56.
10Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), p. 36 note 1, Los Angeles Public Library, 929.722 S215.
11MacEwen, Andrew B. W., "Elen, Countess of Chester: A Daughter of Joan, Princess of Wales," The Genealogist 4:2 (Fall 1983) (The American Society of Genealogists.), p. 137, Los Angeles Public Library.
12Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), pp. 11, 120, 520, 528, 742, Family History Library, 942 D5rd.
13Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 80, Los Angeles Public Library.
14Chetwynd-Stapylton, Henry Edward, The Chetwynds of Ingestre (London: Longmans, 1892.), p. 24, Family History Library, 929.242 C4268c.
15Anderson, Alan Orr, The Chronicle of Melrose (London: P. Lund, Humphries & Co., 1936.), p. 80, Library of Congress, DA775 .M4.
16Richardson, Douglas, Magna Carta Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Co., 2005.), pp. 101, 135, Family History Library, 942 D5rdm.
17Historical Manuscripts Commission, Report on Manuscripts in Various Collections (London: Mackie, 1901-1914.), 1:107, Family History Library, 942 H29gr no. 55.
18Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #1.
19Cokayne, G., CP, 6:463, 9:276, 12 (1): 541.
20Curfman, Robert Joseph, "The Yale Descent from Braiose & Clare through Pigott of Buckinghamshire," The American Genealogist 56:1 (Jan 1980), p. 3, Los Angeles Public Library.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), 27-27, 176-7, 260-31, Los Angeles Public Library, Gen 974 W426 1992.
2Sheppard, Walter Lee, "Joan, Princess of Wales, Daughter of King John," The American Genealogist 35:1 (Jan 1959), p. 32, Los Angeles Public Library.
3Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 51, Los Angeles Public Library, 929.729 D263.
4Finton, Kenneth Harper, "The Mother of Gwladys Ddu," The Plantagenet Connection (Summer/Winter 2002) ([HT Communications, P.O. Box 1401; Arvada, Colorado 80001]), p. 77.
1Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 82, Los Angeles Public Library.
2Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
Llywelyn "The Great" ab IORWERTH
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), 27-27, 29A-27, 132C-29, 176-7, Los Angeles Public Library, Gen 974 W426 1992.
2Weis, Frederick Lewis, The Magna Charta Sureties, 1215 (5th ed., Baltimore: Genealogical Publishing Co., 1999.), 28A-3, 41-5, 41B-5, 114-2, 122A-4, Los Angeles Public Library, 929.273 W426 1999.
3Sheppard, Walter Lee, "Joan, Princess of Wales, Daughter of King John," The American Genealogist 35:1 (Jan 1959), p. 30, Los Angeles Public Library.
4Encyclopedia Britannica.
5Cokayne, George Edward, The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct, or Dormant (London: St. Catherine Press, 1910.), 1:22, 2:304, 2:307, 5:373, 5:642, Los Angeles Public Library, 929.721 C682.
6Weis, F., Ancestral Roots 7, 236-7, 246-30, 252-30, 260-31.
7Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 51, Los Angeles Public Library, 929.729 D263.
8Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 28, Family History Library, 942.9 D2ba.
9Finton, Kenneth Harper, "The Mother of Gwladys Ddu," The Plantagenet Connection (Summer/Winter 2002) ([HT Communications, P.O. Box 1401; Arvada, Colorado 80001]), p. 56.
10Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), p. 36 note 1, Los Angeles Public Library, 929.722 S215.
11MacEwen, Andrew B. W., "Elen, Countess of Chester: A Daughter of Joan, Princess of Wales," The Genealogist 4:2 (Fall 1983) (The American Society of Genealogists.), p. 137, Los Angeles Public Library.
12Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), pp. 11, 120, 520, 528, 742, Family History Library, 942 D5rd.
13Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 80, Los Angeles Public Library.
14Chetwynd-Stapylton, Henry Edward, The Chetwynds of Ingestre (London: Longmans, 1892.), p. 24, Family History Library, 929.242 C4268c.
15Anderson, Alan Orr, The Chronicle of Melrose (London: P. Lund, Humphries & Co., 1936.), p. 80, Library of Congress, DA775 .M4.
16Richardson, Douglas, Magna Carta Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Co., 2005.), pp. 101, 135, Family History Library, 942 D5rdm.
17Historical Manuscripts Commission, Report on Manuscripts in Various Collections (London: Mackie, 1901-1914.), 1:107, Family History Library, 942 H29gr no. 55.
18Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #1.
19Cokayne, G., CP, 6:463, 9:276, 12 (1): 541.
20Curfman, Robert Joseph, "The Yale Descent from Braiose & Clare through Pigott of Buckinghamshire," The American Genealogist 56:1 (Jan 1980), p. 3, Los Angeles Public Library.
1Finton, Kenneth Harper, "The Mother of Gwladys Ddu," The Plantagenet Connection (Summer/Winter 2002) ([HT Communications, P.O. Box 1401; Arvada, Colorado 80001]), p. 78.
1Finton, Kenneth Harper, "The Mother of Gwladys Ddu," The Plantagenet Connection (Summer/Winter 2002) ([HT Communications, P.O. Box 1401; Arvada, Colorado 80001]), p. 78.
2Reitwiesner, William Addams, "The Children of Joan, Princess of North Wales," The Genealogist 1:1 (Spring 1980), p. 81, Los Angeles Public Library.
3Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 176-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), pp. 26, 51, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 28, Family History Library, 942.9 D2ba.
4Burke's Guide to the Royal Family (London: Burke's Peerage, 1973.), p. 322, Family History Library, 942 D22bgr.
5Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
6Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #2.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 176-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 51, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 29, Family History Library, 942.9 D2ba.
4Burke's Guide to the Royal Family (London: Burke's Peerage, 1973.), p. 322, Family History Library, 942 D22bgr.
5Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
6Dugdale, William, Monasticon Anglicanum (London: Longman, Hurst, Rees, Orme & Brown, 1817-1831. FHL BRITISH Film #496,906.), 5:324-5, Family History Library.
7Historical Manuscripts Commission, Report on Manuscripts in Various Collections (London: Mackie, 1901-1914.), 1:107, Family History Library, 942 H29gr no. 55.
8Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #3.
Llywarch "The Red" ab IORWERTH
1Sheppard, Walter Lee, "Joan, Princess of Wales, Daughter of King John," The American Genealogist 35:1 (Jan 1959), p. 32, Los Angeles Public Library.
2Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 260-31, Los Angeles Public Library, Gen 974 W426 1992.
Owain I "Gwynedd" ap GRUFFYDD King of Gwynedd
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 239-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 26, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 28, Family History Library, 942.9 D2ba.
4Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #4.
5Boyer, Carl, Medieval Welsh Ancestors of Certain Americans (Santa Clarita, California: C. Boyer, 2004.), p. 17, Family History Library, 942.9 D2bc.
6Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 2, Family History Library, 942 D5rd.
7Lloyd, Jacob Youde William, The History of the Princes, the Lords Marcher and the Ancient Nobility of Powys Fodog and the Ancient Lords of Arwystli, (London: T. Richards, 1881-1887.), 5:42, Family History Library, 942.9 D2L.
8Nicholas, Thomas, Annals and Antiquities of the Counties and County Families of Wales (London: Longman's, Green, & Reeder, 1875.), 2:792, Family History Library, 942.9 H2n.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), 176-5, 239-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), pp. 26, 34, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), pp. 95-110, Family History Library, 942.9 D2ba.
4Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #5.
1Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 26, Los Angeles Public Library, 929.729 D263.
1Dugdale, William, Monasticon Anglicanum (London: Longman, Hurst, Rees, Orme & Brown, 1817-1831. FHL BRITISH Film #496,906.), 5:324-5, Family History Library.
2Suppe, Frederick, "Roger of Powys, Henry II's Anglo-Welsh Middleman," The Welsh History Review vol. 21, no. 1 (June 2002), Cardiff: University of Wales Press., pp. 19-20, Family History Library, 942.9 H25wh.
3Historical Manuscripts Commission, Report on Manuscripts in Various Collections (London: Mackie, 1901-1914.), 1:107, Family History Library, 942 H29gr no. 55.
4Eyton, Robert William, Antiquities of Shropshire (London: Smith, 1854-1860.), 9:41-2, Los Angeles Public Library, Gen 942.45 E98.
5Eyton, R. W., Antiquities of Shropshire, 9:42.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 176-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 51, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 29, Family History Library, 942.9 D2ba.
4Burke's Guide to the Royal Family (London: Burke's Peerage, 1973.), p. 322, Family History Library, 942 D22bgr.
5Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
6Dugdale, William, Monasticon Anglicanum (London: Longman, Hurst, Rees, Orme & Brown, 1817-1831. FHL BRITISH Film #496,906.), 5:324-5, Family History Library.
7Historical Manuscripts Commission, Report on Manuscripts in Various Collections (London: Mackie, 1901-1914.), 1:107, Family History Library, 942 H29gr no. 55.
8Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #3.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 176-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), pp. 20, 25, 51, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 29, Family History Library, 942.9 D2ba.
4Sanders, Ivor John, English Baronies: A Study of Their Origin and Descent, 1086-1327 (Oxford: Clarendon Press, 1960.), p. 70, Los Angeles Public Library, 929.722 S215.
5Burke's Guide to the Royal Family (London: Burke's Peerage, 1973.), p. 325, Family History Library, 942 D22bgr.
6Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 742, Family History Library, 942 D5rd.
7Stephen, Sir Leslie & Sir Sidney Lee (Editors), The Dictionary of National Biography: From the Earliest Times to 1900 (Oxford, England: Oxford University Press, 1993.), 8:753, Family History Library, 920.042 D561n 1993.
8Dugdale, William, Monasticon Anglicanum (London: Longman, Hurst, Rees, Orme & Brown, 1817-1831. FHL BRITISH Film #496,906.), 5:324-5, Family History Library.
9Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #6.
10Boyer, Carl, Medieval Welsh Ancestors of Certain Americans (Santa Clarita, California: C. Boyer, 2004.), p. 12, Family History Library, 942.9 D2bc.
11Nicholas, Thomas, Annals and Antiquities of the Counties and County Families of Wales (London: Longman's, Green, & Reeder, 1875.), 2:792, Family History Library, 942.9 H2n.
12Sanders, I., English Baronies, p. 70.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 176-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), pp. 20, 25, Los Angeles Public Library, 929.729 D263.
3Lloyd, Jacob Youde William, The History of the Princes, the Lords Marcher and the Ancient Nobility of Powys Fodog and the Ancient Lords of Arwystli, (London: T. Richards, 1881-1887.), 1:119, Family History Library, 942.9 D2L.
4Burke's Guide to the Royal Family (London: Burke's Peerage, 1973.), p. 326, Family History Library, 942 D22bgr.
5Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #7.
6Nicholas, Thomas, Annals and Antiquities of the Counties and County Families of Wales (London: Longman's, Green, & Reeder, 1875.), 2:792, Family History Library, 942.9 H2n.
Owain I "Gwynedd" ap GRUFFYDD King of Gwynedd
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), pp. 239-6, Los Angeles Public Library, Gen 974 W426 1992.
2Davies, Roderick D., A Pedigree of the Royal Tribes of Wales (Shawbury: Rhodri ap Dafydd, 1999.), p. 26, Los Angeles Public Library, 929.729 D263.
3Bartrum, Peter Clement, Early Welsh Genealogical Tracts (Cardiff: University of Wales Press, 1966.), p. 28, Family History Library, 942.9 D2ba.
4Baldwin, Stewart, Llywelyn ap Iorwerth Ancestor Table, https://sites.rootsweb.com/~medieval/llywelyn.htm, #4.
5Boyer, Carl, Medieval Welsh Ancestors of Certain Americans (Santa Clarita, California: C. Boyer, 2004.), p. 17, Family History Library, 942.9 D2bc.
6Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 2, Family History Library, 942 D5rd.
7Lloyd, Jacob Youde William, The History of the Princes, the Lords Marcher and the Ancient Nobility of Powys Fodog and the Ancient Lords of Arwystli, (London: T. Richards, 1881-1887.), 5:42, Family History Library, 942.9 D2L.
8Nicholas, Thomas, Annals and Antiquities of the Counties and County Families of Wales (London: Longman's, Green, & Reeder, 1875.), 2:792, Family History Library, 942.9 H2n.
1Weis, Frederick Lewis, Ancestral Roots of Certain American Colonists Who Came to America before 1700 (7th ed., Baltimore: Genealogical Publishing Co., 1992.), 176-5, 239-6, Los Angeles Public Library, Gen 974 W426 1992.
2Richardson, Douglas, Plantagenet Ancestry: A Study in Colonial and Medieval Families (Baltimore: Genealogical Publishing Company, 2004.), p. 2, Family History Library, 942 D5rd.