There is a long gap between these two latter writers and Vincentio d’Alessandri, an envoy from Venice in 1571 to the Court of Shah Tahmasp, the son and successor of Shah Ismail Sofi, who had died in 1524. This writer is mentioned by Knolles in his General History of the Turks, from whom the following account of the intermediate history is also taken. In the year 1534 Solyman was persuaded by Ibrahim Pasha to make war on Persia, stirred up against the new Shiah religion which had been introduced by Shah Ismail Sofi. The purpose of Ibrahim was also furthered by a Persian named Ulemas, brother-in-law of the King Tahmasp, who had revolted from him,[164] fearing to be called to account for his extortion. After making preparations, Solyman sent Ibrahim and Ulemas with an army into Syria, and in the spring they advanced, without resistance, as far as Tauris. Tahmasp, the Persian monarch, was then absent, engaged in a war with Kezienbassa, Prince of the Corasine Hyrcanians; but, hearing of the taking of his capital, returned in haste for the defence of his empire. Solyman, on reports reaching him of the successes of his generals, crossed the Euphrates at Malatia, and joined them at Tauris. Tahmasp, not daring to join battle with Solyman, retreated to the mountains above Sultania, where the Turkish army, endeavouring to follow him, was greatly distressed, and forced to retreat from the inclemency of the weather. Solyman now retired to Mesopotamia, where he took Bagdad and added the provinces of Babylonia and Mesopotamia to the Turkish empire. In the following year, 1535, Solyman again entered Tauris and ransacked it; but, finding that nothing was to be done against Tahmasp, withdrew to his own dominions greatly harassed on his journey by Persian cavalry, who at last surprised and routed his army near Betilis, under the command of Delimenthes. This last reverse was the occasion of the fall of the great Pasha Ibrahim, the friend and counsellor of Solyman, by whose orders he was murdered. Ulemas was afterwards made Governor of Bosina. In 1549 the cause of Ercases Imirza, Prince of Shirvan and brother of Shah Tahmasp, was espoused by Solyman against Tahmasp; but, in a tedious war, except the capture of Van by the Turks, nothing of any importance took place, as the Persian monarch, pursuing his usual tactics, acted on the defensive, and retreated to the mountains. Discord being sown between Solyman and Ercases Imirza, the latter fled to Chaldea, where he was treacherously delivered into the hands of Tahmasp, who caused him to be murdered in prison. Bajazet, the son of Solyman, after his rebellion in 1556, fled for safety to the Court of Tahmasp, who received him with favour at first; but his mind becoming embittered against him, he caused his followers to be dispersed and slain, and Bajazet himself to be cast into prison. Solyman used all the means in his power to have Bajazet delivered into his hands, but Tahmasp