1291.

Frederick I of Meissen, eldest son of Albert II, and his younger brother Dietrich IV claimed Frederick Tuta's territories, which met with opposition not only from their father Albert II but also from King Adolf of Germany, who regarded them as reverted fiefs. In 1294 Albert II sold Thuringia to King Adolf, again facing fierce protest of his sons who felt deprived of their heritage. After a feud with their father they