FTP, name this famous leader of the House of Hohenstauffen who received his  nickname from his red beard.
After serving in the Second Crusade with his uncle Conrad, he would see his calvary defeated by Civic infantry at the battle of Legnano. As Duke of Swabia he was able to take Rome, fighting off the forces of the Lombard Leauge, after  sacking Milan in 1162 as well. Saladin called his death a "miracle,"when, on his way to fight in the third Crusade, this man drowned in the Calycadnus river. FTP, name this famous leader of the House of Hohenstauffen who received his  nickname from his red beard.
After serving in the Second Crusade with his uncle Conrad, he would see his calvary defeated by Civic infantry at the battle of Legnano.
Frederick Barbarossa (also accept Frederick I Hohenstaufen or Frederick III of Swabia)