Governorate of New Andalusia (1524−1542) Governorate of the Río de la Plata (1549–1776), under the supervision of the Real Audiencia of Lima in the Viceroyalty of Peru (1541−1661), then the first Royal Audiencia of Buenos Aires (1661−1671). Viceroyalty of the Río de la Plata (1776–1814), under the governing supervision of the second Royal Audiencia of Buenos Aires (1783−1810) in the south, and Real Audiencia of Charcas in the north, until the Independence of Argentina.