Uncle of Abul-Abbas - Al - Saffah, first of the Caliphs Abasidas. He died in the 755. She won a battle to the Caliph Meruan II and floored with this victory the dynasty of the Ommiadas. But it was dishonored by the atrocities he committed with the vanquished. After the death of Al - Saffah, who had made Governor of Syria, said claims to the Crown; but, defeated in several battles, withdrew to Iraq, where he was killed.