Diego de Torres Vargas , a priest, was the first person to write a book about the history of Puerto Rico.
Torres Vargas was born in San Juan, Puerto Rico, to a prosperous family. His father, Garcia de la Torre, was a Sergeant Mayor in the Spanish Army who died while fighting alongside Captain Juan de Amezquita against Captain Balduino Enrico , leader of the Dutch armada, who attempted to invade the island, in the Battle of San Juan of 1625.
Source: Wikipedia