Juan Jufré was the governor of the Argentine province that historially comprised which provinces?
Juan Jufré Juan Jufré de Loayza y Montesa (1516–1578) was a Spanish conquistador who participated in the 1541 expedition of Pedro de Valdivia to Chile. He was the first alcalde of Santiago, Chile (in 1541) and held the position of governor of the Argentine province of Cuyo. He founded the city of San Juan de la Frontera and re-founded the city of Mendoza.
Imperial province An imperial province was a Roman province during the Principate where the Roman Emperor had the sole right to appoint the governor ("legatus Augusti"). These provinces were often the strategically located border provinces.