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.
Mariano Vera Mariano Vera was a "caudillo" and governor of the province of Santa Fe, Argentina, between 12 April 1816 and 23 July 1818.