In Amasya, he got the news of the death of his brother Mehmed. It seemed like all barriers between the throne and Mustafa were gone, but he still faced another challenge. Another brother of Mustafa, Şehzade Bayezid, was sent to Konya for his sanjak assignment. It was a critical decision, as they were Hürrem Sultan's sons, the mother of the late Mehmed. Her support of her own son, Bayezid, made Mustafa's political career difficult, but he successfully ruled Amasya for 12 years. In 1547, during Sultan Suleiman’s Elkas Campaign, the sultan met with his sons Selim, Bayezid, and Mustafa in different places and talked to them about the political situation. It was long after the death of Mehmed, but the race between the three princes was still going on. Selim was sent to Anatolia as the prince of Manisa in 1544.[2]
Mustafa’s life was now in danger, as Haseki Hürrem Sultan and Grand Vizier Rüstem Pasha made a court alliance against him in favor of Hürrem's sons, Selim and Bayezid.
Execution