The marquisate of Saint George of Bogotá was a noble title given to Jorge Miguel Lozano de Peralta by the King Carlos III.

The founder of the lineage was Jorge Miguel Lozano y Peralta (Circa 1650) born in Alcalá de Henares, Spain.

In 1772, by order of the King of Spain, the majorat of the Dehesa de Santafé became a marquisate and its owner became the Marquis of San Jorge and Viscount of Pastrana.

In 1767, Jorge sent to the Council of the Indies in Spain a Relation of Merits and Circumstances, with the purpose of obtaining a noble title.

By 1775, the family possessions in the Santafé de Bogotá savannah covered around twenty thousand hectares, and in the city they owned nine houses and a tannery.