High Quality Content by WIKIPEDIA articles! Frederick I of Baden (1249 – October 29, 1268, aged 19) was Margrave of Baden and claimant Duke of Austria from October 4, 1250 until his death. He was born at Alland, the only son of Margrave Herman VI of Baden and Gertrude of Babenberg, the niece and heiress of late Duke Frederick II of Austria.