For his great services at Hohenfriedberg, Frederick gave him the captaincy of Tatiau, which carried with it a salary of 500 thalers a year. Later on he became Governor of Kolberg in Pomerania. At the Battle of Hennersdorf, Zieten repulsed the sudden and unexpected assault of the united Austro-Saxon force; Winterfeldt arrived on the field in time to take a decisive part in the victory. Once again the rivals had to share the laurels, and Zieten wrote to the king in disparagement of Winterfeldt, receiving in reply a full and generous recognition of his own worth and services, coupled with the curt remark that the king intended to employ General von Winterfeldt in any way that he thought fit. During the ten years peace that preceded the next great war, Winterfeldt was in constant attendance upon the king, except when employed on confidential missions in the provinces or abroad. For example, he was sent to London for negotiating the Convention of Westminster. In 1756 he was made a lieutenant general and received the Order of the Black Eagle and the Order Pour le Mérite.