Edmund of Langley, 1st Duke of York was the fourth surviving son of King Edward III of England and Philippa of Hainault. Like many medieval English princes, Edmund gained his nickname from his birthplace: Kings Langley Palace in Hertfordshire. Wikipedia
Born: June 5, 1341, Kings Langley, United Kingdom
Died: August 1, 1402 (age 61 years), Epworth, United Kingdom
Parents: Edward III and Philippa of Hainault
Spouse: Joan Holland (m. 1393) and Isabella of Castile, Duchess of York (m. 1372)