[5] His inheritance from his mother's Louvain lands included the Suffolk manors of Bildeston, Hopton, Shelland and "Lovaynes" in Drinkstone, and (in Essex), Little Easton, Broxted and Aythorpe Roding.
In 1417 he was in the retinue of King Henry V during his second expedition to France, and played a significant role in the capture of Normandy.
In 1419, he was appointed Captain of Dieppe and was granted powers to receive the submission of the town and Comté of Eu.
The French count of Eu had refused to pay homage to the conquering English king and thus had been held prisoner in England since Agincourt.
[7] He married Anne of Gloucester, Countess of Stafford, daughter of the Plantagenet prince Thomas of Woodstock, 1st Duke of Gloucester (1355–1397), youngest son of King Edward III by his wife Eleanor de Bohun, elder daughter and coheiress of Humphrey de Bohun, 7th Earl of Hereford (1341–1373), Earl of Essex and Northampton.