Albert II of Meissen

Albert II, called the Degenerate (c. 1240–1314), of the House of Wettin, ruled Meissen and Thuringia. In 1255 he married Margaret of Sicily, daughter of the Emperor Frederick II, but his affair with Kunigunde of Eisenberg drove Margaret from the Wartburg in 1270.

When he favoured the sons of his second marriage, his elder sons Frederick and Diezmann made war on him; Frederick captured Albert, and the Treaty of Rochlitz in 1289 cost him most of his lands. In 1293 he sold Thuringia to King Adolf of Nassau.