Question: What is the cause of death of Edmund Mortimer (Died 1331)'s father?
Sentence (from "Edmund Mortimer (died 1331)"): Sir Edmund Mortimer (1302/1303 – 16 December 1331) was the eldest son of Roger Mortimer, 1st Earl of March and Joan de Geneville, 2nd Baroness Geneville.
Relevant evidence: Yes