Despite many expulsion attempts in the 16th century, the Frankfurt community advanced to become the center of the Jewish world in the Early Modern Age in the German-speaking region. Cilli Kasper-Holtkotte explores the history of the Frankfurt Jews during this period - a topic scarcely studied until now - and investigates the profound influence social networks and conflicts exerted on the lives of Jewish families. The study is based on rarely researched court records, minutes of city council meetings and Jewish community records from the Early Modern Age, which are explained thematically in the second part of the work.