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A younger son of Thomas, Earl of Warwick, and a seasoned military man.
- Veteran of Nájera at the side of Pedro of Castile and the Black Prince (1367).
- According to Fernão Lopes, he was constable of the English fleet accompanying Edmund Earl of Cambridge to Portugal to assist King Fernando against Juan I of Castile (1381). He may have been given command of the English transport ships. [TVF]
Guilhem Beocap