Francisco Solano López was a Paraguayan military leader and politician who served as the President of Paraguay from 1862 until his death in 1870. He is best known for his role in the War of the Triple Alliance, a conflict involving Paraguay, Argentina, Brazil, and Uruguay. López aimed to expand Paraguay's territory and influence but ultimately faced significant military defeat. López was born on July 24, 1827, into a prominent family. He succeeded his father, Carlos Antonio López, as president and implemented various reforms. His leadership style was authoritarian, and he maintained strict control over the government and military throughout his presidency.