Junta Grande

Some of them recognised the Buenos Aires Junta and the outcome of the events of the May Revolution, while others sought to exercise exclusive control over their own affairs, and still others continued to recognize the Regency Council in Spain.

Thus, in order to avoid royalists taking political advantage of the situation, the Buenos Aires Junta sought to quickly assert its power.

On May 27, 1810, it delivered messages to every one of the Viceroyalty municipal councils (Spanish: cabildos), asking them to elect representatives to join the Junta in Buenos Aires.

By early December, most delegates had already arrived in the capital city, and they were asking for their effective incorporation into the governing body (that was held up due to the infighting between centralists led by the Junta's Secretary of War Mariano Moreno, and federalists led by the Junta's President, Cornelio Saavedra).

It governed until September 23, 1811 (since August 26, 1811 under the presidency of Domingo Matheu), when it was replaced as the executive authority by the First Triumvirate.