 Von Wylich began his military career in 1737; he was involved in all wars and battles under Frederick the Great and rose to the rank of General of Cavalry in 1794 before retiring in 1795.He received the order Pour le Mérite for his bravery in the Battle of Zorndorf in 1758 during the Seven Years' War.He was married to Sophie Beate von Schlichting (8 August 1736 – 28 October 1801) and the couple had seven children.