Francesco Borromini was a prominent Italian architect of the Baroque period, known for his innovative designs and unique architectural style. Born in 1599 in Bissone, Switzerland, he moved to Rome, where he worked on several significant buildings. His most famous works include the Church of San Carlo alle Quattro Fontane and the Church of Sant'Ivo alla Sapienza, which showcase his mastery of complex shapes and dramatic use of light. Borromini was a contemporary of other notable architects, such as Gian Lorenzo Bernini, but his approach often emphasized emotional expression and intricate details. He was known for his unconventional use of space and form, which set him apart from his peers. Borromini's influence on architecture can still be seen today, as his designs continue to inspire modern architects.