In a courtyard of church of Santa Croce is Pazzi Chapel (1430-45), a masterpiece in miniature by Filippo Brunelleschi with adjoining Museum of the Opera of Santa Croce, which is housed in the Refectory and other rooms of the Convent. The rectangular chapel is defining example of (and model for) early Renaissance architecture. The Museo dell'Opera contains many renowned artworks and best known is "Crucifix" by Cimabue.
The Pazzi family were involved in a conspiracy to kill two members of the Medici family way back when. They carried out their plan in the Duomo no less, but one of their targets survived, and the family suffered after that. Today, "pazzo" means "crazy" in Italian.
The Pazzi Chapel is right next to the Church of Santa Croce. I love this chapel because it's such a nice example of Renaissance architecture, and as it is set behind some doors and a lawn, it's pretty quiet here. There is also a little museum you can visit.
Capella dei Pazzi, Brunelleschi, Santa Croce
The Capella Pazzi is part of the Santa Croce complex, but it's outside the church itself at the end of the cloister of the Museo dell'Opera di Santa Croce.
The chapel is by Brunelleschi and is a model of perfect symmetry.
Brunelleschi began this chapel in 1443. It is done in classical style with dome and frescoes on the interior by Luca della Robbia around 1442-1452.