Roger Mortimer1374 - 1398 Born Mon, 11 April 1374 Usk Died Fri, 20 July 1398 Kellistown Buried Wigmore Abbey, Wigmore Details Parents 4th Earl of March Roger Mortimer Lived 24 years, 3 months, 9 days Slain in a skirmish father Edmund Mortimer 1352 - 1381 mother Philippa of Clarence 1355 - 1382 Siblings Sister Elizabeth Mortimer 1371 - 1417 Sister Philippa Mortimer 1375 - 1401 Brother Edmund Mortimer 1376 - 1409