Альтона
In addition, Rabbi Hillman was a direct sixth-generation descendant of the author of "Knesses Yechezkel", who was the Av Beth Din of Altona, Hamburg and Wandsbek. He also descended from the Katzenellenbogen family, and could trace his lineage back to the Maharam (Rabbi Meir ben Isaac) of Padua and Rabbi Yehuda Mintz.