Abraham Ben Abraham

Abraham ben Abraham (Hebrew: אברהם בן אברהם‎, lit. "Avraham the son of Avraham") (c. 1700 – May 23, 1749), also known as Count Valentine (Valentin, Walentyn) Potocki (Pototzki or Pototski), was a purported Polish nobleman of the Potocki family who converted to Judaism and was burned at the stake by the Roman Catholic Church because he had renounced Catholicism and had become an observant Jew. According to Jewish oral traditions, he was known to the revered Talmudic sage, the Vilna Gaon (Rabbi Elijah Ben Shlomo Zalman ). Some historians who have studied his story have stated that surprisingly little evidence of Potocki's existence has yet been discovered other than several 19th-century sources citing earlier oral histories, and they therefore consider that he most likely did not exist.

Read more about Abraham Ben Abraham:  Jewish Traditions, Historical Evidence