text: While in Gallipoli, this man was often visited in his prison, called the "Tower of Strength."
full_question: While in Gallipoli, this man was often visited in his prison, called the "Tower of Strength." His followers eventually divided into family branches including Kapancı and Yakubi. This man's birth is prophesied in a forged document titled "The Great Wisdom of Solomon." His teacher Joseph Escapa excommunicated him after he was expelled for staging a wedding service in which he pretended to marry the Torah. Descendants of his followers were known as dönme, or converts; those descendants followed syncretic traditions drawing from Sufi Islam. Followed by Nathan of Gaza, this Romaniote preached in Salonica until he was forced into exile after proclaiming himself Eyn Sof, the Kabbalistic origin of all things. A book about him by Gershom Scholem is subtitled the "Mystical Messiah." For 10 points, name this man who claimed to the Jewish messiah in the 17th century Ottoman Empire.
first_sentence: While in Gallipoli, this man was often visited in his prison, called the "Tower of Strength."
raw_answer: Shabtai Tzvi [or Sabetay Sevi; or Shabbetai Zvi; or Sabbatai]