Frederick II recalled him on his accession to the throne in 1740 and transferred him as a major to the Natzmer regiment, which had been established in 1740 and became the Hussars Regiment No. 4 in 1742. On 2 March 1741 he was transferred to the Hussars Regiment No. 3 as lieutenant colonel. In 1744 he acquired the Order Pour le Mérite after he helped suppress the insurgency in Silesia at Plesse. Subsequently, he was assigned to the corps of General Ernst Christoph von Nassau. On 5 April 1745, Hyacinth Malachow von Malachowsky, the Proprietor (Inhaber) of the regiment was killed in a skirmish at Gross-Strelitz;[4] he was subsequently promoted to colonel and chief of the Hussars' Regiment No. 3 on 20 April 1745. On 3 September 1751 he was promoted to major general.[2][3]
He had attained such a reputation that the King ordered some officers of the Brandenburg and the Magdeburg cavalry regiments to join the Hussar Regiment Wartenberg, in order to perfect themselves in the cavalry service. In 1750 he received the Golmenglin estate in Zerbst (today a district of Grimme), which he sold with permission to Count von Melsch. He received the preeminence of the Abbey of Essen, and a sabre richly decorated with stones. In 1755 he bought the estate of Schönfeld from a Count von Pückler.[2][3]
At the outbreak of the Seven Years' War, in 1756, Wartenberg had with his regiment the advanced guard of the army division of the General Field Marshal Kurt Christoph von Schwerin. This service was also assigned to him and his regiment in 1757, when the army entered Bohemia under Schwerin.[2][3] On 2 May, he was instructed to secure the bridges and post roads in Stará Boleslav, to keep the Austrians from setting them on fire. With his regiment, and greatly outnumbered, he attacked 1,500 Pandours on the Elbe.[5] In the fighting, he was struck and killed by a musket ball. He was buried in Stará Boleslav.[2][3] Upon his death, Charles-Emmanuel de Warnery became Proprietor of the regiment.
He had been betrothed to Baroness Rudolphine Wilhelmine Charlotte of Dyhrn (later Countess Henckel) when he died. In his testament, he gave her all his fortune.[2][3]
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| Preceded by |
Proprietor of Hussar Regiment Nr. 4 1745–1757 |
Succeeded by |