Joined the Dominicans in 1605. Priest. Missionary to Pangasinan, Philippines in 1611. Taught theology at the Colegio de Santo Tomas. Missionary to Japan in 1623 during a time of violent persecution of Christians. Worked with local converts for ten years, aided by Saint Francis Shoyemon. Captured by authorities in July 1633, he was imprisoned, tortured and finally murdered for refusing to renounce his faith. Martyr.
- “Saint Domingo Ibáñez de Erquicia“. CatholicSaints.Info. 20 November 2012. Web. 28 March 2015. <>