Don Antonio refers to a historical figure rather than a city in Mexico. According to the provided source material, António, Prior of Crato, was a grandson of King Manuel I of Portugal who claimed the Portuguese throne during the 1580 dynastic crisis.
Known by various titles including "The Determined," "The Fighter," and "The Independentist," he is recognized by some historians as having been King of Portugal for 33 days in 1580. Although Philip II of Spain ultimately prevailed in the succession struggle, António maintained his claim to the throne until 1583. He was also a disciple of Bartholomew of Braga.