German nobility, Elector of Saxony from 1464 to 1486.
Ernst was founder of the Ernestine line of Saxon princes, ancestor of George I of Great Britain, Prince Albert of Saxe-Coburg and Gotha, as well as his wife and cousin Queen Victoria of the United Kingdom, and their cousins Leopold II of Belgium and Empress Charlotte of Mexico.
He was the second son (but fourth in order of birth) of the eight children of Frederick II, Elector of Saxony and Margaret of Austria, sister of Frederick III, Holy Roman Emperor. The death of his older brother Frederick (1451) made him the new heir apparent to the position of Elector of Saxony. In 1455 Ernst was kidnapped, along with his brother Albert, by the knight Kunz von Kaufungen an episode famous in German history as the “Prinzenraub” (i. e. The Stealing of the Princes). In 1464, he succeeded his father as Elector of Saxony, and annexed Thuringia in 1482, and three years later (Treaty of Leipzig, 1485) shared his territory with his brother Albert, until he arranged the division of the common possession. According to the Treaty of Leipzig he received an area around Wittenberg, the southern Thuringian part, the Vogtland and parts of the Pleissnerland. As a residence he selected Wittenberg. He provided for the welfare of the country and introduced the constitution.
In Leipzig on 19 November 1460 Ernst married Elisabeth of Bavaria. They had seven children. He died on 26 August 1486 in Colditz, at the age of 46 years, the consequence of a fall from a horse.
Link to Wikipedia biography