Elisabeth of Brandenburg, Duchess of Brzeg-Legnica and Cieszyn German princess (1403–1449) Parents Elisabeth of Bavaria, Electress of Brandenburg Frederick I, Elector of Brandenburg Children Hedwige de Brzeg Magdalena de Brzeg Siblings Dorothea of Brandenburg, Duchess of Mecklenburg Magdalene of Brandenburg Albrecht III Achilles, Elector of Brandenburg John, Margrave of Brandenburg-Kulmbach Margaret of Brandenburg Cecilia of Brandenburg Frederick II, Elector of Brandenburg Frederick of Altmark Sofie von Hohenzollern Partners Louis II of Brieg Wenceslaus I, Duke of Cieszyn