Third son of Emperor Leopold I. and Eleonora Magdalena of Palatinate-Neuburg. King of Bohemia and Hungary. Holy Roman Emperor from 1711 to 1740. Lost the Spanish crown and colonies to Philip of Anjou. Regulation of female succession through the Pragmatic Sanction. Talented musician and great patron of the arts. Expansion of Klosterneuburg as a monastery and residence. Founder of St. Charles's Church.