Almost nothing remains of the Jewish presence in Diez despite the nearly-seven-hundred year span of continuous Jewish survival in this town, a history virtually obliterated during the Holocaust. The Jewish population of Diez in the Middle Ages can be traced back to around 1286 and 1303. Already, by 1337 and then again in 1348-49, the Jewish population suffered pogroms, giving early evidence of antisemitism in Diez. Nonetheless, a small Jewish population persisted throughout the centuries, although the maximum number of Jewish residents was likely reached in 1895, when 130 Jews resided in the city. Diez was also the seat of the district rabbinate at the end of the 18th century, then the seat of the Rabbi of Nassau-Orange. From 1860, it would be the Jewish community in Diez Rabbinatsbezirk Ems.