 Complete the following phrase:  Knyphausen was from Lütetsburg, East Frisia. He learnt his trade in Dutch service under Maurice of Orange, rising to the rank of captain by 1603. He later served the Hanseatic League, then the Protestant Union. In the 1620s, with the Thirty Years War turning against the Protestants, Knyphausen had the misfortune to be repeatedly on the losing side, witnessing the defeats at the Battle of Höchst 1622 and the battle of Stadtlohn 1623. After the latter battle he was accused of treason and even sentenced to death, only to be exonerated. He fought under Ernst von Mansfeld at the 