John de Montagu Parents Father: William de Montagu (1302–) Mother: Katherine de Grandison (–1349) Family Spouse: Margaret de de Monthermer Children: John de Montagu (1350–5 Jan 1401) m. Maud Francis (–1424) · 1383 Children: Anne de Montagu ← Surname index Father: William de Montagu (1302–)Mother: Katherine de Grandison (–1349)