| 1. | Mary Plantagenet was born in 1320; died on 1 Sep 1362. Mary married Henry de Percy in Sep 1334. Henry (son of Henry de Percy and Idoine de Clifford) was born in 1320; died on 18 May 1368. [Group Sheet] [Family Chart]
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| 2. | Henry de Percy, Earl of Northumberland Henry married Margaret de Neville on 12 Jul 1358. Margaret (daughter of Ralph de Neville and Alice de Audley) died in May 1372. [Group Sheet] [Family Chart]
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| 3. | Sir Henry "Hotspur" Percy Family/Spouse: Elizabeth de Mortimer. [Group Sheet] [Family Chart]
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| 4. | Elizabeth Percy Family/Spouse: Lord John de Clifford. John (son of Lord Thomas de Clifford and Elizabeth de Ros) died on 13 Mar 1421 in Meaux, Seine-Et-Marne, ?le-de-France, France. [Group Sheet] [Family Chart]
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