Mace I De Beauvau 
Mace I De was born about 1265. Mace I De's father was Rene De Beauvau and his mother is Jeanne De Preuilly. His paternal grandparents were Baudouin De Beauvau and Jeanne De La Jaille. He was an only child. He died on May 3rd, 1328.General Notes
Senechal d'Anjou
SOURCES: LDS FHL Ancestal File #
"Ancestors/Descendants of Royal Lines" (Contributors: Manuel Abranches de Soveral, Reynaud de Paysac, F.L. Jacquier <Genealogy of Lewis Carroll, Justin Swanstrom, The Royal Families of England Scotland & Wales by Burkes Peerage; Debrett's Peerage & Baronage; Table of descendants French Canadian Genealogical Society; Families of Monfort-sur-Risle & Bertrand de Bricquebec; The Dukes of Normandy, XXXXI, Paul Leportier, Claude Barret>, H.R. Moser <Burke Peerage>, L. Orlandini, O.Guionneau, L.B. de Rouge, E. Polti, A.Terlinden <Genealogy of the existing British Peerage, 1842>, L. Gustavsson, C. Cheneaux, E. Lodge, S. Bontron <Brian Tompsett>, R. Dewkinandan, C. Donadello; Scevole de Livonniere, H. de la Villarmois)) http://geneastar.org.
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Ancestor Pedigree Chart
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*There are earlier generations for the ancestor(s) indicated. See their page(s) for details (click name)
- b.1130 d.1173
- b.~ 1155 d.1187 in Palestine
- b.~ 1135
- b.< 1187 d.1227 in Beavau
- b.~ 1160 d.1200
- b.~ 1210 d.1266
- b.< 1190
- b.~ 1240 d.1266 in Naples, Italy
- b.~ 1215 d.> 1259
- b.~ 1265 d.03 May 1328
- b.~ 1235
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He had a biological son named Jean II De.