In Spring 1476, three notaries (Erhard Muracher von Flügelsberg on behalf of Duke Ludwig von Landshut of Bavaria, Jorg Loterbeck on behalf of the bishop, and Christoph Sittauer on behalf of the city of Regensburg) initiated a seizure of the goods of Saidia Straubinger as part of a criminal investigation in which the city council accused a number of Jewish men of the ritual murder of a Christian child. He had commercial relations with a number of Christian merchants in Regensburg and pursued his debtors vigorously. For example, in 1472, he and a group of creditors of Heinrich Staudigl forced the auction of his house, and in January 1476, Saidia Straubinger received a confirmation of a claim against Leonhard Hausmann from the city council. After his arrest for taking part in the ritual murder of 1476, the city's officials tortured him so much that a rumor of his death in prison spread throughout the town. Although the emperor summoned Saidia Straubinger to appear at the imperial court as a chambermaid, he remained in custody until 1480 when he and the other arrested Jews were released. He played an important role in the dispersing public money to members of the Jewish community. He was also probably rather learned, given that the synagogue appears to have been located in the courtyard of his estate. His collection of books and documents is extraordinary. Edited by Wilhelm Volkert in "Das Regensburger Judenregister von 1476," in Festschrift für Andreas Kraus zum 60. Geburtstag, edited by Walter Ziegler, Andreas Kraus, and Pankraz Fried, Münchener historische Studien Abteilung Bayerische Geschichte 10 (Kallmünz: Lassleben, 1982), p. 138. For biographical information, see ibid., pp. 118-119.