Edmund Mortimer, 5th Earl of March [SEP] father
V, and was later taken up by the House of York in the Wars of the Roses, though Mortimer himself was an important and loyal vassal of Henry V and Henry VI. Edmund was the last Earl of March of the Mortimer family.
Early life.
Edmund Mortimer, 5th Earl of March, was born at New Forest, Westmeath, one of his family's Irish estates, on 6 November 1391, the son of Roger Mortimer, 4th Earl of March, and Eleanor Holland. He had a younger
second surviving son, whereas Bolingbroke's father, John of Gaunt, was King Edward III's third surviving son.
When his elder brother Roger was slain in a skirmish at Kells in Ireland on 20 July 1398, Edmund became responsible for protecting the interests of Roger's young son, Edmund Mortimer, 5th Earl of March, who also had a claim to the throne as heir to his father.
Capture by Owain Glyndŵr.
Both Edmund Mortimer and his brother-in-law Henry 'Hotspur' Percy fought