The person who was king of England when William de Botreaux, 1st Baron Botreaux died was born on what date?
William de Botreaux, 1st Baron Botreaux William de Botreaux (1337–1391) (pronounced "But'ry") (alt. “Bottreaux, Boterel etc.) was a prominent English West-Country baron during the reigns of King Edward III (1327-1377) and King Richard II (1377-1399).
Roger Mortimer, 1st Earl of March Roger Mortimer, 3rd Baron Mortimer, 1st Earl of March (25 April 1287 – 29 November 1330), was an English nobleman and powerful Marcher lord who gained many estates in the Welsh Marches and Ireland following his advantageous marriage to the wealthy heiress Joan de Geneville, 2nd Baroness Geneville. In November 1316, he was appointed Lord Lieutenant of Ireland. He was imprisoned in the Tower of London in 1322 for having led the Marcher lords in a revolt against King Edward II in what became known as the Despenser War. He later escaped to France, where he was joined by Edward's queen consort Isabella, whom he took as his mistress. After he and Isabella led a successful invasion and rebellion, Edward was subsequently deposed; Mortimer allegedly arranged his murder at Berkeley Castle. For three years, Mortimer was "de facto" ruler of England before being himself overthrown by Edward's eldest son, Edward III. Accused of assuming royal power and other crimes, Mortimer was executed by hanging at Tyburn.