Francesco Borromini was a prominent Italian architect of the Baroque period, known for his innovative designs and dramatic use of space. Born in 1599 in Bissone, Switzerland, he moved to Rome, where he became a key figure in the development of Baroque architecture. His work is characterized by complex geometries, dynamic forms, and intricate details. Borromini's most famous projects include the Church of San Carlo alle Quattro Fontane and the Church of Sant'Ivo alla Sapienza. His unique style often contrasted with that of his contemporaries, such as Gian Lorenzo Bernini, leading to a rivalry that shaped the architectural landscape of 17th-century Rome.