Alfonso de Zamora (c1480-1531) was Spanish Rabbi who converted to Roman Catholicism. He was baptized in 1506; died 1531.
He revised the Hebrew text for Ximenes's Polyglot Bible, translated the Chaldee paraphrase in it, and added the sixth volume. He published also a work called "Introductiones Hebraicae" (Alcalá, 1526) which included a translation of the Letter to the Hebrews into Hebrew.
This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed (1913). Catholic Encyclopedia. Robert Appleton Company.