From 20 August 1383 to 26 February 1421 he was
summoned several times to Parliament by
writ, by which he is held to have become
1st Baron Camoys, of the second creation. The first creation of that title had expired on the death of his uncle
Thomas de Camoys, 2nd Baron Camoys (d. 11 April 1372), to whom he was heir. In 1380 Camoys was in the
retinue of his cousin
William Latimer, 4th Baron Latimer in an expedition to France, and was knighted by
Thomas of Woodstock, then
Earl of Buckingham. He later served in an expedition to Scotland in 1385. According to
Leland (d.1552), Camoys benefited little under King
Richard II (1377-1399), and after Richard's deposition in 1399 he attended the first Parliament of the new king,
Henry IV (1399-1413). His son, Sir Richard Camoys, was knighted by King Henry IV at his coronation, and Camoys himself escorted Henry's new queen,
Joan of Navarre, to England in February 1403. His loyalty to Henry IV brought him several grants. Prior to the embarkation for France by King
Henry V (1413-1422), Camoys was present at a meeting of the King's Council held for the purpose of planning the invasion, and was appointed on 31 July 1415 to the commission which condemned to death
Richard, Earl of Cambridge, and
Henry Scrope, 3rd Baron Scrope of Masham, for their part in the
Southampton Plot. At the
Battle of Agincourt in 1415, Camoys commanded the rearguard on the left of the English line, and in recognition of his service was made a
Knight of the Garter on 23 April 1416. ==Marriages and children==