Federal League

State · 1814–1819 CE · at its largest around 1815 CE

A league of provinces in the Río de la Plata led by José Gervasio Artigas, championing federalism against Buenos Aires, which collapsed after a Portuguese invasion of the Banda Oriental.

On its lands while it lasted

José de San Martín (1778 CE – 1850 CE): Argentine general who led campaigns that freed Argentina, Chile and Peru from Spanish rule.