عبد الرحمن الأوسط
In 809, Louis led his last expedition as King of Aquitaine into the "Marca". This time equipped with siege engines, Tortosa was besieged for forty days by Frankish and troops from the Marca (under Bera). The new Emir of Cordoba, Abd ar-Rahman II, however met the besiegers with an army. The Moorish chronicler Al Maqqari records a Muslim victory, while Astronomus simply states that the besieged offered Louis's the keys to the city and, satisfied, the King of Aquitaine lifted his siege and left.