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.
Argentine Confederation The Argentine Confederation (Spanish: "Confederación Argentina") is one of the official names of Argentina according to the Argentine Constitution, Article 35. It was the name of the country from 1831 to 1852, when the provinces were organized as a confederation without a head of state. The governor of Buenos Aires Province (Juan Manuel de Rosas during most of the period) managed foreign relations during this time. Under his rule, the Argentine Confederation resisted attacks by Brazil, Bolivia, Uruguay, France and the UK, as well other Argentine factions during the Argentine Civil Wars.