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i. Roger de Mortimer (4997432), born 1231 in Wales.
ii. Hugh de Mortimer, born ? in Wales.
7/24/1255, Mandate to Agnes de Vescy to deliver Agatha de Ferariis, her sister, .. committed to her keeping by the queen and R. earl of Cornwall when the king was in Gascony, … whose marriage the king granted to Eudo la Zouche, to Hugh son of Ralph de Mortuo Mari, to whom the said Hugh has transferred it. (S) CPRs.