Edmund Mortimer, son of the 3rd Earl

Who was Edmund Mortimer, son of the 3rd Earl?

Sir Edmund Mortimer, who had a claim to the crown through his mother, Philippa Plantagenet, played a part in the rebellions of the Welsh leader, Owain Glyndŵr, and the Percys, and perished at the siege of Harlech.

Edmund Mortimer, born 10 December 1376 at Ludlow Castle in Shropshire, was the second son of Edmund Mortimer, 3rd Earl of March, by his wife Philippa Plantagenet. He was a grandson of Lionel of Antwerp, 1st Duke of Clarence, and thus a great-grandson of King Edward III. He had an elder brother, Roger Mortimer, 4th Earl of March, and two sisters, Elizabeth, who married Henry 'Hotspur' Percy, and Philippa, who married firstly John Hastings, 3rd Earl of Pembroke, secondly Richard Fitzalan, 11th Earl of Arundel, and thirdly, Sir Thomas Poynings.

Edmund was financially well provided for, both by his father, who died when Edmund was 5 years old, and by his elder brother, Roger.