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Close Rolls 1231-34 p: 534 - Letter dated 13th October 1234 addressed to Maurice...
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Close Rolls 1231-34 p: 534 - Letter dated 13th October 1234 addressed to Maurice fitz Gerald Justiciar of Ireland, refers to Hubert de Burgh as the uncle of Richard de Burgh. (note that this Richard de Burgh may sometimes appear in genealogies as a son of William fitz Aldelm)