The Speyer family is a prominent Jewish family of German descent. It can be traced back to Michael Isaac Speyer (1644–1692), who had briefly been the head of the Jewish community in Frankfurt am Main in 1691–92. The family originates from Speyer in Palatinate, hence the surname.[1] In the late eighteenth century, the Speyers were the wealthiest Jewish family in Frankfurt, well above the Rothschild family.[2]