Siege of Narbonne

In the spring of 737, Charles Martel launched a major campaign against the Umayyad possessions in Septimania and besieged Narbonne, a Muslim stronghold and gateway to invasions in Gaul. Despite a series of victories over neighboring cities and the encirclement of the city, the defenders held on thanks to the regular arrival of reinforcements by sea from Al-Andalus. The Franks won several battles around the city but were unable to capture it. Faced with new threats to the north, Charles Martel lifted the siege in the fall.

After the Battle of Poitiers (732), Charles Martel intended to definitively eliminate the Muslim threat in southern Gaul. He led an expedition to Septimania, a region under Umayyad control since 719. The main coastal cities fell or were ruined by the Franks, but Narbonne, powerfully fortified, benefited from the constant support of the Umayyad fleet. The city resisted a prolonged siege, protected by its ramparts and supplied by sea.

Charles Martel uses a classic siege strategy: land blockade, attacks against the ramparts, attempts to cut supply lines. The Umayyads, masters of the sea, managed to maintain sufficient supplies and sent reinforcements from Spain. Several pitched combats took place on the outskirts of Narbonne, but the city resisted. Charles Martel, forced to face revolts and threats to his rear, had to lift the siege without being able to force capitulation.

The siege of Narbonne marked a temporary halt to Frankish expansion in the south: the city remained a Muslim stronghold until 759. However, Charles Martel's campaign permanently weakened the Umayyad presence in Septimania: neighboring cities were retaken or destroyed, local allies of the Umayyads were eliminated, and the region came under constant threat from the Franks. This action prepared the way for the Carolingian reconquest led by Pepin the Short twenty years later.