Edmund Mortimer, 5th Earl of March

Edmund Mortimer, 5th Earl of March, 7th Earl of Ulster (* November 6, 1391; † January 18, 1425 ) was the son of Roger Mortimer, 4th Earl of March, and Eleanor de Holland. His older sister was Anne Mortimer.

Edmund was about his father and his mother Philippa Plantagenet, 5th Countess of Ulster, a great-grandson of Lionel of Antwerp, 1st Duke of Clarence, the second son of Edward III. At the time of his birth the representative of the oldest line of the House of Plantagenet, King Richard II had no heirs, so Edmunds father was determined as representative of the second oldest line since 1385 successor to the throne. When his father's death in 1398, Edmund was desiginierter at the age of seven years, heir to the throne of England.

In the wake of the events surrounding the Lords Appellant and based thereon irreversible rift between Richard II and the representative of the third oldest branch of the family, Henry Bolingbroke, Duke of Hereford and Lancaster, however, there were on September 30, 1399 to depose Richard II, Bolingbroke in turn ascended the throne as Henry IV, bypassing the older hereditary claims of his cousin. Edmund and his younger brother Roger were taken in honorable custody. 1405 freed rebels under the leadership of her uncle, Sir Edmund Mortimer, and Henry Percy, 1st Earl of Northumberland, the two boys. Edmund and Roger were caught later and came in 1409 in the custody of the Prince of Wales, Henry of Lancaster. As this 1413 after the death of his father ascended the throne under the name of Henry V, Edmund was confirmed as Earl of March and Earl of Ulster, and him of his possessions were handed over. Roger had recently died.

Meanwhile, Edmunds had sister Anne Richard of Conisburgh, 1st Earl of Cambridge, married the second son of Edmund of Langley, 1st Duke of York, and was in 1411, probably died in childbirth Richard Plantagenet. She was the second oldest lineage of the Plantagenets with the fourth- oldest wedlock connected. When Henry V. was preparing his campaign in France in 1415, Cambridge was planning a coup in favor of his brother. However, Edmund was pulled very late by the conspirators into his confidence. After days long deliberation he chose the loyalty to the king and told his brother to the king. Cambridge was executed shortly before the embarkation of the English army in Southampton. Edmund and also the brother of Conisburgh Richards, Edward of Norwich, 2nd Duke of York remained in the favor of the king and accompanied him on the campaign. Edmund V. was in 1422 a member of the regency council for the year of the new king Henry VI after the death of Henry.

Edmund died on January 18, 1425, leaving from his marriage with Anne Stafford, daughter of Edmund Stafford, 5th Earl of Stafford, and of his wife Anne of Gloucester, no direct heirs. His possessions went to his nephew, Richard Plantagenet, 3rd Duke of York, who was the representative of the second oldest lineage of the Plantagenets now and laid claim to the throne in 1460.

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