Thomassa X 
General Notes
SOURCES: "Ancestors/Descendants of Royal Lines" (Contributors: Reynaud de Paysac, H.R. Moser <Burke Peerage>), O.Guionneau, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842, and E. Lodge>)
‌Thomassa and Jean II De were married in a religious ceremony about 1280. They have a daughter named Isabelle De.