 Complete the following phrase:  As a 13-year-old boy 1714, he entered the Prussian military service on the Kürassierregiment zu Pferd Kronprinz Cuirassier-of-Horse Regiment Crown Prince. At the beginning of the First Silesian War Schwerin was already Lieutet-Colonel and Commander of the Markgräflich Bayreutschen Dragoonsregiment Margraviate of Bayreuths Dragoon Regiment. Both his regiment and himself, however, did not gain any laurels in the battles at Mollwitz in 1741 and 