The story of Kraszewski tells how Count Potocki, while traveling across Europe together with his friend Zaremba, encountered an old man poring over the Talmud in one of the Parisian inns. They were intrigued and wished to learn more about Jewish religion and Hebrew language. They swore to convert to Judaism if convinced of Christianity’s falseness. Eventually Potocki found himself in Amsterdam, and following the promise he made to himself and his friend, converted to Judaism and assumed the name of Avraham ben Avraham. Zaremba, upon receiving news of his friend’s conversion, left Vilnius with his wife and son for Amsterdam where they adopted Judaism and, most likely, migrated to Jerusalem. Whereas Avraham ben Avraham, on the contrary, returned to Vilnius. Following his return he was reported for his apostasy from Christianity, but the Clergy was unsuccessful in convincing the straying Count to return to Catholicism and he was sentenced to death by burning alive. His execution was carried out in 1764 (in 1719 according to some sources) at the foot of Gediminas Hill. Pretending to be a Christian, a Jew named Leiser Ziskes managed to collect the ashes of the convert, and an unburnt finger. They were later buried in the Jewish cemetery at Šnipiškės.