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Under Frankish rule

In 721, Duke Odo of Aquitaine defeated an invading Umayyad Muslim army at the Battle of Toulouse. Many Arab chroniclers consider that Odo's victory was the real stop to Muslim expansion into Christian Europe, incursions of the following years being simple raids without real will of conquest (including the one that ended with Charles Martel 's victory at the Battle of Tours, also called the Battle of Poitiers).

The Frankish conquest of Septimania followed in the 750s, and a quasi-independent County of Toulouse emerged within the Carolingian sub-kingdom of Aquitaine by the late 8th century. The Battle of Toulouse of 844, pitting Charles the Bald against Pepin II of Aquitaine, was key in the Carolingian Civil War.