Francesco Borromini: Life and Legacy Early Life and Training Born: Francesco Castelli (later known as Borromini) was born on September 25, 1599, in Bienne, Switzerland, to an Italian stonemason. He moved to Rome with his father at a young age and initially followed in his father’s trade. Self-Taught Scholar: Borromini was largely self-taught as an architect, demonstrating a remarkable dedication to learning through independent…