Antonio de Berrío was born in
Segovia. He began his military career at the age of 14 in the service of the king
Carlos I. The young nobleman began his military life in Flanders. He entered combat for the first time in the
Battle of Marciano that ended with the capture of
Siena. Later he was destined to the fight in the African coasts against the
Berbers. The next destination was the fight against the
Rebellion of the Alpujarras against the rebellious
Moriscos. After the conflict in the mountains of
Granada, was already appointed as captain of a cavalry company to the surveillance of the coasts of Granada, to finally be appointed governor of the Alpujarras. Already as governor Berrío marries
María de Oruña, maternal niece of
adelantado and lawyer
Gonzalo Jiménez de Quesada. The latter, who died in 1579, in his will appoints Berrio and his wife as successors and heirs of their titles and assets. They receive the news by the
Correo de las Indias in 1580, Berrío is 53 years old and his life, which seemed to take a calmer course, returns to action. Upon his arrival in America, and as
governor of Trinidad in 1580–1597, title inherited from his political uncle, the
adelantado Gonzalo Jiménez de Quesada, founder of
Bogotá and one of the main characters among the conquistadores of
New Granada, will continue with the work begun by him Antonio de Berrio organized several expeditions to
Guiana Plateau in his search for the mythical El Dorado. Between 1583 and 1589 he carried out his first two expeditions, penetrating the hostile and wild regions of the Colombian plains and the Upper Orinoco. == First expedition ==