Bayezid marched east from Amasya on 7 July 1559 with four of his sons and ten thousand men. Despite orders, many officials refrained from engaging him during his journey from Amasya to Bayburt and then to Erzurum. There, governors-general caught up with him and attacked. Bayezid disengaged and fled to Safavid territory. His actions raised concerns within the Ottoman establishment about the potential threat of his forceful return and the possibility of an alliance with
Tahmasp I, the
Shahanshah of Safavid Persia. To preempt any aggression, additional forces were deployed along the Safavid border, and placed on high alert. In the autumn of 1559, he reached the Safavid town of
Yerevan, where he was received with great respect by its governor. In October, he reached
Qazvin, where he was welcomed by Tahmasp. Although Tahmasp initially wholeheartedly and lavishly welcomed Bayezid, including giving magnificent parties in his honour, he later imprisoned him on the request of Sultan Suleiman in April 1560. Suleiman had consulted Chief Jurist
Ebussuud Efendi about Bayezid's execution. Both Suleiman and Selim sent envoys to Persia to persuade the shah to execute Bayezid. For the coming one and half year in fact, embassies would continue to travel between
Istanbul and
Qazvin. On 16 July 1561, what would be the last of the Ottoman embassies would arrive, whose formal task, like the previous embassies, was to try to return Bayezid to Istanbul. This included the governor of
Van Hüsrev Pasha, Sinan Pasha, Ali Aqa Chavush Bashi, and a retinue of two hundred officials. In the letter that was given with the embassy, Suleiman also declared his readiness to reconfirm the
Treaty of Amasya (1555) and to begin a new era of
Ottoman–Safavid relations. Suleiman, throughout the embassies, also gave Tahmasp numerous gifts. He also agreed with Tahmasp's demand to pay him for handing Bayezid over. Tahmasp was then given 400,000 gold coins. ==Execution==