Alessandro Geraldini was a Renaissance humanist scholar at the Spanish court of King Ferdinand and Queen Isabella. He is known for his support of Christopher Columbus. He served as tutor to the royal children and later accompanied the Infanta Catharine of Aragon to England, as her confessor. In 1519, at 64 years of age, he traveled to the Spanish settlements in the New World, and became Bishop of Santo Domingo.
Geraldini was born in Amelia, in the region of Umbria in Italy. As a young man, he went to Spain, where he served against the Portuguese in 14751476. He entered the Church, and was entrusted with the education of the princesses of the royal family. While at court he supported Columbus, who had come to present to the sovereigns of Castile and Aragon his plan for discovering a new world.
Source: Wikipedia