In 1624 he participated in the Siege of Breda under Ambrosio Spinola, and fought later under Tilly in Osnabrück against the Danes. In the Winter of 1627/28 he took up winter quarters in East Frisia. In 1628 he became a Knight in the Order of the Golden Fleece, and in 1629 he became Governor of the Alsace and of Further Austria. In 1630 he died in Freiburg from tuberculosis.