Family tree▼
https://books.google.ca/books?id=LPFSAAAAYAAJ&pg=PA309&lpg=PA309&dq=Jeanne+de+Belsunce+Henri+de+B%C3%A9arn&source=bl&ots=mDcLfStKUS&sig=Dd699AELTiJRPB3Fqp21FCe-ccY&hl=fr&ei=lE5FTtjiEobo0QH6r4HZBw&sa=X&oi=book_result&ct=result#v=onepage&q&f=false
Sale of the Seigneurie de Sendos (Saint-Dos) in 1598 by Marie de Sacaze and Jeanne de Belsunce, Grandmother and Mother of Jacques de Bearn, sieur de Bonasse, to Pierre de Lostal, vice-chancellor of Navarre.