War of Austrian Succession  and in the  Seven Years' War . http://en.wikipedia.org/wiki/Totenkopf Frederick II  January 24, 1712 – August 17, 1786) was a  King  of  Prussia  (1740–1786) from the Hohenzollern dynasty . [1]   In his role as a  prince-elector  of the  Holy Roman Empire , he was Frederick IV  (