The House of Saxe-Weimar is a German noble family that originated in the 13th century. It is part of the larger House of Wettin and is known for its significant influence in the region of Thuringia. The family ruled the Duchy of Saxe-Weimar and later the Grand Duchy of Saxe-Weimar-Eisenach. Members of the House of Saxe-Weimar played important roles in German history, particularly during the German Empire and the Weimar Republic. Notable figures include Johann Wolfgang von Goethe, a prominent writer and statesman, who was associated with the court of Saxe-Weimar.