In the spring of 1622, after the Estates granted him a special war tax for three years, he had between and mercenaries at his disposal, with a relatively large amount of artillery, in addition to the regiment that would remain behind to defend Baden. On 24/25 April 1622, he began a campaign against the Emperor and his Catholic allies. However, he arrived too late to participate in the Battle of Mingolsheim on 27 April, where the Palatinate commander Count Ernst von Mansfeld crushingly defeated Lieutenant General Tilly of the Catholic League.