José Maria da Silva Paranhos, also known as Barão do Rio Branco, was a prominent Brazilian diplomat and politician born on April 20, 1845. He played a crucial role in shaping Brazil's foreign policy during the late 19th and early 20th centuries. His efforts were instrumental in resolving territorial disputes with neighboring countries, particularly with Argentina and Bolivia. Paranhos served as Brazil's Minister of Foreign Affairs from 1902 until his death in 1912. He is best known for his diplomatic negotiations that led to the signing of the Treaty of Petrópolis in 1903, which established Brazil's borders and expanded its territory. His legacy is celebrated for promoting peace and stability in the region.