- 1st Earl of Cambridge and 1st Duke of York.
- Son of Edward III of England and Philippa of Hainault.
- Brother of John of Gaunt, duke of Lancaster, and of the Black Prince.
- Leads expedition to Portugal to assist King Fernando during the third 'Fernandine War' against Juan I, King of Castile (1381-1382).
Heimon
Edmondo comde de Cambrix
Chronicle entries in which Edmund of Langley, Earl of Cambridge appears:
Crónica de D. João I, part 2, ch. 88