David Nieto (1654-1728), the first rabbi of the new Bevis Marks Synagogue and the hakham of the Spanish and Portuguese congregation of London at the beginning of the eighteenth century, is not an unstudied figure in recent Jewish historiography. From the early portrait of Moses Gaster to the later elaborations of Cecil Roth and Moses Hyamson, and from the exhaustive bibliographical study of Israel Solomons to the pioneering study of Nieto's thought by Jacob Petuchowski, Nieto's public career and theological writings have been examined as well as any other Jewish intellectual figure of early modern Europe.1 Yet each of these studies, especially Petuchowski's book, was completed over thirty years ago. In the interim, new scholarship in Jewish history, particularly in the history of Marranism and Sabbatianism, has illumined the broader cultural ambiance of Nieto's era.2