We learn from Oriental writers that one of the Buyid (Buwaihid) sultans in the 10th century of the Flight constructed the great cisterns, which may yet be seen, and have been visited, amongst others, by James Morier and E.
His later life was spent in various parts of the Moslem world, in Aleppo with Saif-ud-Daula (to whom he dedicated the Book of Songs), in Rai with the Buyid vizier Ibn `Abbad and elsewhere.
The real ruler at Bagdad was a Turk named Basasiri, lieutenant of the last Buyid, Malik-ar-Rahim.
The Buyid ruler, who was now slinreme nt Ba2dsd, nermitte,d the Tkshlil to remsin in possession of his viceroyalty, but shortlya after receiving this confirmation he died at Damascus in 946.
Aziz attempted without success to enter into friendly relations with the Buyid ruler of Bagdad, A1/4od addaula, who was disposed to favor the Alids, but caused the claim of the Fatimites to descend from Ali to be publicly refuted.
One of the Buyid princes, whose power had been steadily increasing, marched about this time against Bagdad, which he entered in Jomada I.
During this caliphate the Buyid princes were in continual war with one another.
Ultimately, however, the Buyid dynasty grew weaker under the quarrels of its members and fell an easy prey to the Ghaznevids.