He was held in high esteem on account of his religious and kabbalistic knowledge; and, as the brother-in-law of Joseph Ergas, the well-known anti-Sabbatean, he had great influence over the Jews of Leghorn, urging them to believe in Sabbatai. Even later, in 1667, when Shabbethai's apostasy was rumored, Pinheiro, in common with numerous other adherents of Zevi, still believed him to do be the messiah.
- Grätz, Gesch. 3d ed., x. 190, 204, 225, 229, 312