Sergios 120 was the commander of a Roman fortress called "Qmh" (i.e. Kamachon; cf. Rochow, Theophanes, p. 208) in the frontier region when an Arab army under Abbas 2 attacked in the year 1078 Sel. (766/767); he had a reputation as a kindly and merciful man, allegedly displayed once when peasants suffering hardship under Arab rule fell captive to him; he gave them the choice of staying with him or returning home, and those who chose to return were supplied with food for the journey; his fortress was besieged by Abbas 2 for a long time but held out under his leadership until winter came and the Arabs were summoned to withdraw: Pseudo-Dion., Chron., pp. 230, 27-233, 2 = pp. 180-182, pp. 239, 7-240, 25 = pp. 187-188.

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