Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Henry III, der Erlauchte or Henry the Illustrious (c. 1215, probably in Meissen 15 February 1288, Dresden), Margrave of Meissen; the last Margrave of Lusatia as Henry IV; and Landgrave of Thuringia, son of Dietrich, Margrave of Meissen and Jutta of Thuringia. Henry was the youngest son of Dietrich of Meissen and Jutta of Thuringia. In 1221 he succeeded his father, as Margrave of Meissen of the Wettin dynasty, under guardianship of his maternal uncle, Ludwig the Saint, and after his death in 1227, under that of Albert II, Duke of Brandenburg. In 1230 he was legally proclaimed an adult and in 1234 married with Constantia, the daughter of Leopold VI, Duke of Austria.