Pedro I of Brazil

Pedro I, also known as Dom Pedro I, was the founder and first ruler of the Empire of Brazil, reigning from 1822 until his abdication in 1831. He played a crucial role in Brazil's independence from Portugal, famously declaring it on the banks of the Ipiranga River. He was also briefly King of Portugal as Pedro IV. His reign marked the transition of Brazil from a colony to an independent empire, and he is remembered for his efforts to promote constitutional monarchy.