Pope III, also known as Pope Urban VI, was the head of the Roman Catholic Church from 1378 to 1389. He was born Bartolomeo Prignano in Naples, Italy, and became pope during a time of significant political and religious turmoil. His election was controversial, leading to the Western Schism, where rival popes claimed authority. Urban VI is known for his attempts to reform the church and assert papal authority. His reign was marked by conflicts with various factions, including the French cardinals who later elected Clement VII as an opposing pope. Despite his efforts, his papacy was characterized by instability and division within the church.