Mary married Henry DE PERCY on 14 Aug 1334 in by Royal Assent. Henry (son of Henry DE PERCY, K.G. and Idonea DE CLIFFORD) was born in 1320 in Alnwick, England; died between 18 May and 17 Jun 1368; was buried in Alnwick. [Group Sheet] [Family Chart]
Henry married Margaret DE NEVILLE on 12 Jul 1358. Margaret (daughter of Lord Ralph DE NEVILLE and Alice DE AUDLEY) was born about 1341 in Raby, Durham, England; died in May 1372. [Group Sheet] [Family Chart]
Henry married Maud DE LUCY before 03 Oct 1383. Maud (daughter of Thomas DE LUCY and ? UNKNOWN) died on 18 Dec 1398. [Group Sheet] [Family Chart]