Brother of Diogo Antonio. He was the representative of the Portuguese Maranos in Rome about the middle of the sixteenth century, commissioned to adjust the finances of his brother, and to convey to Pope Paul III. a complaint against the inquisitor-in-chief, the Cardinal-Infante Don Henrique. The Portuguese ambassador at the Vatican urged the immediate imprisonment of the fugitive Marano, but he was saved by the intercession of the pope. Antonio's efforts on behalf of his suffering brethren met with no success.
- Kayserling, Gesch. der Juden in Portugal, pp. 226, 228.