Documents suggest that, although small in number at the time, Sephardic Jews fleeing persecution from the Inquisition developed a small community in London around the late 16th century, largely known from contemporary Spanish and Portuguese sources writing about English Catholic ambassadors' repeated complaints of Jews from this community meeting to celebrate Passover and Yom Kippur in London.
[1][2] Toward the middle of the 17th century a considerable number of Sephardic merchants settled in London and formed there a secret congregation, at the head of which was Antonio Fernandez Carvajal.
They formed an important link in the network of trade spread, especially throughout the Spanish and Portuguese world by the Sephardi or secret Jews (see Commerce).
In the following three centuries, Sephardic Jews communities established near the major European sea ports like Amsterdam and London, helping the Marranos who were expelled from the Spanish Inquisition to rise up new merchant activities.
According to Antonio de Montezinos, the Ten Tribes had been discovered in the American Indians of Ecuador, and England was the only country from which Jews were excluded.