The Cappella dei Pazzi is one of Brunelleschi's last works and one of the purest expressions of Renaissance architectural geometry. Built for the Pazzi family as their chapter house and private chapel off the cloister of Santa Croce, it was begun around 1441 and completed after Brunelleschi's death in 1446. The plan is a rectangle with a small dome over the central bay and a barrel-vaulted entrance porch — a scheme of perfect proportional clarity.
The interior decoration reinforces the architectural logic: blue-and-white glazed terracotta roundels by Luca della Robbia show the twelve Apostles in the frieze and the four Evangelists in the pendentives of the dome. The limited colour palette — white pietra serena against grey stone — keeps attention on the geometry. Entry is included in the Santa Croce museum ticket, which also covers the Basilica interior and the Museum of Opera di Santa Croce. The chapel is inside the cloister to the right of the Basilica entrance — follow the signs through the first cloister.