Sophie of Thuringia

Sophie of Thuringia (20 March 1224–29 May 1275), duchess of Brabant, was the daughter of Landgrave Louis IV of Thuringia and Saint Elisabeth of Hungary, born at Wartburg Castle. In 1241 she married Henry II of Brabant, and their son Henry the Child founded the Hessian dynasty.

When her uncle Henry Raspe died heirless in 1247, she fought the War of the Thuringian Succession against the Meissen margraves and Mainz, retaining Hesse for her son; the 1264 settlement gave him Hesse while Meissen took Thuringia. She died at Marburg and was buried at Villers Abbey.