Rabbi Isaac Alleker Alexander

https://de.wikipedia.org/wiki/Isaak_Alexander

https://www.tzorafolk.com/genealogy/history/alexander.htm

http://www.tzorafolk.com/genealogy/history/haring.htm

https://en.wikipedia.org/wiki/History_of_the_Jews_in_Regensburg

http://www.jewishencyclopedia.com/articles/1142-alexander-isaac

ALEXANDER, ISAAC:

By: Moses Beer

German author; lived in South Germany in the second half of the eighteenth century, and wrote on philosophical subjects from a rationalistic point of view. His works include: "Von dem Dasein Gottes, die Selbstredende Vernunft," Ratisbon, 1775; "Anmerkungen über die Erste Geschichte der Menschheit nach dem Zeugnisse Mosis," Nuremberg, 1782; "Vereinigung der Mosaischen Gesetze mit dem Talmud," Ratisbon, 1786; "Einheitsgedichte," a German translation of the "Shir ha-Yiḥud," Ratisbon, 1788; "Abhandlung von der Freiheit des Menschen," and "Kleine Schriften," Ratisbon, 1789.

Bibliography: Fürst, Bibliotheca Judaica, i. 33, 34.

https://en.wikipedia.org/wiki/Isaac_Alexander