Edward I of England had a great number of children with his first wife,
Eleanor of Castile, but only one son who survived into adulthood – the future
Edward II (born 1284). After Eleanor died, the king married
Margaret of France, with whom he had two children who survived to adulthood:
Thomas (born 1300) and, when the king was sixty-two, Edmund. Edmund was born at
Woodstock in
Oxfordshire on 5 August 1301, and was therefore referred to as Edmund of Woodstock. Son of the English king, he was also, through his mother, grandson of
Philip III of France. Though not resident in the two boys' household, Edward I had taken great interest in the princes' upbringing and well-being. Before he died, the king had promised to provide Edmund with substantial grants of land. In August 1306, Edward I signed a
charter promising Edmund land worth 7000
marks a year, and in May 1307, 1000 marks were added to this. He probably intended to give the
earldom of Norfolk to Thomas, while Edmund would receive the
earldom of Cornwall, which had been left vacant after Edward I's cousin
Edmund died without children in 1300. According to the chronicle
Vita Edwardi Secundi, this act was a grave insult to the king's younger brothers. Edward II, nevertheless, took steps to provide his half-brother with an income; grants made in 1315 and 1319 secured Edmund 2000 marks a year. Edward II's close relationship with Gaveston had been a source of conflict at court, and Gaveston's execution by a group of rebellious barons in 1312 had brought the country to the brink of civil war. As Edmund came of age, he became an important member of the circle around his brother. In 1318, the
Treaty of Leake was drafted as an effort to reconcile the opposing parties, and Edmund – as his first public act – was among the witnesses to sign this treaty. Further official appointments followed. In the spring of 1320 he took part in an embassy to
Pope John XXII in
Avignon, where the mission was to absolve the king of his oath to uphold the
Ordinances, a set of restrictions imposed on royal authority by the baronage. In October 1320, Edmund attended his first parliament. ==Civil war==