 When Charles X Gustav died at the end of the war, Wrangel participated in organising the obsequies and composed the melody to a lament.Also in 1660, Wrangel became chancellor of the University of Greifswald; he had been made supreme judge in Uppland Province two years earlier.In 1664, he was appointed Lord High Constable of the realm, and as such, he was a member of the Privy Council during the minority of King Charles XI of Sweden.