Complex sentence: Albert, surnamed "The Degenerate" (c.1240-13 November 1314), was a German, landgrave of Thuringia and the eldest son of Henry III the Illustrious, margrave of Meissen.
Split into simpler sentences: Albert, surnamed "The Degenerate" (c.1240-1314), German noble. He was landgrave of Thuringia and the eldest son of Henry III the Illustrious, margrave of Meissen.