Margaret of Austria, a member of the House of Habsburg, was Electress consort of Saxony from 1431 until 1464 by her marriage with the Wettin elector Frederick II. She was a sister of Emperor Frederick III.
Albert III was a Duke of Saxony. He was nicknamed Albert the Bold or Albert the Courageous and founded the Albertine line of the House of Wettin.
Ernest, Elector of Saxony (1464–1486), Frederick II, Elector of Saxony (1428–1464) and Albert III, Duke of Saxony (1486–1500); from left to right, Fürstenzug, Dresden, Germany