Thomas Frederick Tout , Dictionary of National Biography… (1895)
“ PELHAM, JOHN de (d. 1429) , treasurer of England, was the son of Sir John Pelham, a Sussex knight who fought in the wars of Edward III in France, and of his wife Joan Herbert of Winchelsea. He was in the service of John of Gaunt, duke of Lancaster, and afterwards of his son, Henry of Derby, subsequently Henry IV. On 7 Dec. 1393 he was appointed by John of Gaunt constable of Pevensey Castle for life. ”
