Holy Roman Emperor Fredrick I, also known as Barbarossa drowns while crossing the Saleph River (also known as the Göksu River) in modern-day Turkey, near the city of Seleucia in Anatolia. Frederic I was leading an army to Jerusalem during the Third Crusade.
His death was a blow to the Third Crusade which had the goal of retaking the Holy Land from Muslim control and led to the departure of many German nobles and others to abandon the Crusade before reaching Acre. Historians consider him among the Holy Roman Empire's greatest medieval emperors. More