Career
Van der Delft came to England in 1545 to represent Charles V. In the summer of 1545, after Chapuys" departure, he was officially introduced to King Henry aboard the Henry Grace à Dieu shortly before the Battle of the Solent. Under Edward VI, in 1550, as the Privy Council put pressure on Princess Mary to restrain the usage of her mass, van der Delft suggested to her to flee England. He was recalled before anything came of this plan, and died shortly afterwards.
He was replaced as ambassador by Jean Scheyfve.