Capture of Loulon

After the successful campaign by the Abbasid Caliph, al-Ma'mun, against the Byzantines in 831, his enthusiasm for another campaign has grown. From February to April of 832, the caliph was busy taking down a Coptic revolt in Egypt. Afterwards, the Caliph returned to Damascus, where he found the Byzantine ambassador, possibly John the Grammarian, with a letter from the Byzantine emperor Theophilos requesting peace. The greeting of the emperor's name was started before the Caliph's name, making al-Ma'mun ignore the letter without reading and using it as a pretext for a new campaign. The Abbasids laid their eyes on the Byzantine fortress of Loulon. This fort was the only Cappadocian fort of importance that the Muslims have not captured.^[1]

In May 832, the Abbasids arrived at the fort and began the siege. Loulon was well supplied and fortified. The fort withstood the Arabs for three months or 100 days. Seeing the fort resisting him, the campaign no longer amused the caliph, and instead, he initiated the blockade by constructing two military forts near Loulon. Al-Ma'mun placed the general Ujayf ibn Anbasa as the commander with a large army and enough supplies to besiege for a year. However, after the Caliph's departure, the Byzantine garrison managed to capture Ujayf using a trick. By this time, probably in September, a Byzantine relief army led by Theophilos was marching to relieve the fort. Learning of his approach, the Abbasids from the two forts, though deprived of their leader, marched to meet them. The battle ended in victory for the Abbasids, with the Byzantine camp plundered and the emperor escaping alive.^[2][3][4]

Seeing the emperor's defeat, the Byzantine agreed to surrender and release Ujayf in exchange for safe departure, and the Arabs kept their word. They took the place and garrisoned it.^[5][6][7]