He re-entered "Rigsraadet" in 1542, was made seignory of various lucrative land holdings, and took part in various diplomatic dealings for Christian III. He was named Marshal of Denmark in 1554. He once again carried the ceremonial sword at the coronation of Frederick II of Denmark in 1559, but did not have a good relationship with the new king. During the Northern Seven Years' War from 1563 to 1570, Krumpen was given command of the army by Frederick II in 1564, was relieved of his duty again in 1565, and resigned as marshal in 1567. He died in 1569 as the last of the family Krumpen, and was interred at Mariager Abbey.