_Thomas "Lord Roos 5th" DE ROOS _
_William "Lord Roos 6th" ROOS , K. G._|
| |_Beatrice DE STAFFORD ___________
|
|--John "Lord Roos 7th" ROOS
|
| _John DE ARUNDEL , Knt.__________
|_Margaret ARUNDEL ____________________|
|_Alianore MALTRAVERS ____________