Title: The cultural moment at the beginning of work on S. Ivo alla Sapienza
Subjects: Art patronage, Mathematics in art, S. Ivo alla Sapienza (Church : Rome, Italy)
People: Galileo Galilei (1564-1642), Urban VIII Pope (1568-1644), Francesco Borromini (1599-1667), Benedetto Castelli (1577 or 1578-1643)