A tondo is a Renaissance term for a circular work of art, either a painting or a sculpture. The word derives from the Italian rotondo, "round". The term is usually not used in English for small round paintings, but only those over about 60 cm in diameter, thus excluding many round portrait miniatures – for sculpture the threshold is rather lower.
Fra Angelico and Fra Filippo Lippi, Adoration of the Magi, c. 1440/1460, National Gallery of Art
Portrait of family of Septimius Severus, so-called Severan Tondo, Roman painting of c. 200 AD, Altes Museu, Berlin
Andrea della Robbia, Madonna and Child with Cherubin, 1485
Michelangelo, Pitti Tondo, c. 1504–05, Uffizi
The Basilica di San Lorenzo is one of the largest churches of Florence, Italy, situated at the centre of the main market district of the city, and it is the burial place of all the principal members of the Medici family from Cosimo il Vecchio to Cosimo III. It is one of several churches that claim to be the oldest in Florence, having been consecrated in 393 AD, at which time it stood outside the city walls. For three hundred years it was the city's cathedral, before the official seat of the bishop was transferred to Santa Reparata.
Interior looking toward the high altar
The interior columns of the basilica
The balcony on the interior west wall designed by Michelangelo