Battle of Narbonne: Frankish forces under Charles Martel besiege Narbonne, occupied by a Umayyad garrison, but are unable to retake the fortress city. A Lombard army under King Liutprand crosses the Alps, to aid Charles in expelling the Muslims from Septimania. Meanwhile Maurontus, duke or count of Provence, raises a revolt from his unconquered city of Marseille, and threatens the rear of the Franks.[3]
Battle of the River Berre: Frankish forces sent by Charles Martel intercept a large Muslim army sent from Al-Andalus, (modern Spain) sent by Uqba ibn al-Hajjaj to relieve the siege of Narbonne. Both sides suffer heavy losses at the battlefield near the mouth of the River Berre (a short distance south of Narbonne). Some of the Muslims rush back to their ships, and some penetrate through the Frankish forces and make it to the city, effectively saving it from the Franks.[4]
Following the death of Theuderic IV, king of the Franks, the throne is left vacant for seven years. Charles Martel has his son Childeric III exiled to a monastery, and becomes sole ruler of the Frankish Kingdom.
Egypt: Christians invade from the south, with the aim of protecting the patriarch of Alexandria (approximate date).
Asia
Second Arab–Khazar War: The Khazars led by Hazer Tarkhan are defeated by a Muslim force, sent by Marwan ibn Muhammad ibn Marwan near the Volga River, which destroyed what remained of the Khazar forces. The Umayyad Caliphate now has full control of the Caucasus after completely destroying the Khazar Empire. After its destruction the Arab-Khazar wars are stopped, Muslim sources indicate the Khazar Khan paid tribute to Marwan and converted to Islam.
Emperor Xuan Zong discards the policy of conscripting men into the Chinese army to be replaced every three years, replacing them with long-service soldiers who are more battle-hardened and efficient (approximate date).
By topic
Catastrophe
A major Japanese smallpox epidemic that started in 735 finally runs its course, but only after causing an estimated 25% to 35% mortality among the adult population in the country.[6]
Mastnak, Tomaz (2002). Crusading Peace: Christendom, the Muslim World, and Western Political Order. University of California Press, p. 101. ISBN0-520-22635-6.
