buenos aires lost the authority to appoint governors in the provinces, which increased their autonomies. santa fe was the first province to write a provincial constitution. ramírez proclaimed the independence of the republic of entre ríos, with the intention to annex paraguay and buenos aires and liberate the banda oriental with their combined forces, but this short-lived project ended after his assassination. the province of corrientes was split from entre ríos after the disestablishment of the proposed state.