Henry V of England
In the service of Philip the Good, he discharged several diplomatic missions in France, England (as Ambassador to Henry V of England), Teutonic Knights, Poland, Grand Duchy of Lithuania, and Grand Duchy of Moscow and was one of the negotiators of the Treaty of Troyes (1420). In 1421 he was sent by Henry V of England to Palestine to inquire into the possibility of reviving the Kingdom of Jerusalem, and wrote an account of his travels, "Les Pelerinages de Surye et de Egipte", which was published in 1826 and again in 1842.