d. 1555

An Augustinian bishop, he was born at Fuentellana, Castile, Spain, the son of a miller. He studied at the University of Alcala, earned a licentiate in theology, and became a professor there at the age of twenty-six. He declined the chair of philosophy at the university of Salamanca and instead entered the Augustinian Canons in Salamanca in 1516. Ordained in 1520, he served as prior of several houses in Salamanca, Burgos, and Valladolid, as provincial of Andal usia and Castile, and then court chaplain to Holy Roman Emperor Charles V (r. 1519-1556). During his time as provincial of Castile, he dispatched the first Augustinian missionaries to the New World. They subsequently helped evangelize the area of modern Mexico. He was offered but declined the see of Granada, but accepted appointment as archbishop of Valencia in 1544. As the see had been vacant for nearly a century, Thomas devoted much effort to restoring the spiritual and material life of the archdiocese. He was also deeply committed to the needs of the poor. He held the post of grand almoner of the poor, founded colleges for the children of new converts and the poor, organized priests for service among the Moors, and was renowned for his personal saintliness and austerities. While he did not attend the sessions of the Council of Trent, he was an ardent promoter of the Tridentine doctrines  throughout Spain.