Balthasar, Landgrave of Thuringia

Balthasar (1336–1406) of the House of Wettin was Margrave of Meissen and Landgrave of Thuringia. The second son of Margrave Frederick II, he was born at Weißenfels; after his father's death in 1349, his elder brother Frederick III acted as regent and guardian until Balthasar and their brother William came of age and ruled jointly with him.

In 1374 he married Margaret, daughter of Burgrave Albert of Nuremberg; their son Frederick IV succeeded him. In 1382 the Division of Chemnitz ended a quarrel with Frederick III's sons by assigning Balthasar the Landgraviate of Thuringia. He died at the Wartburg in 1406.