Originally endowed by Willa, Marquess of Tuscany, in 978, this ancient church is an interesting mélange of 13th-century, Renaissance, baroque, and 18th-century architectural refurbishing. Its graceful bell tower, best seen from the interior courtyard, is beautiful for its unusual construction—a hexagonal tower built on a quadrangular base. The interior of the church (open Monday afternoon only) was halfheartedly remodeled in the baroque style during the 17th century. Three tombs by Mino da Fiesole (circa 1430–84) line the walls, including the monumento funebre di Conte Ugo (tomb sculpture of Count Ugo), widely regarded as Mino's masterpiece. Executed in 1469–81, it shows Mino at his most lyrical: the faces seem to be lit from within—no small feat in marble. The best-known work of art here is the delicate Vision of St. Bernard, by Filippino Lippi (circa 1457–1504), on the left as you enter. The painting—one of Filippino's finest—is in superb condition; note
the Virgin Mary's hands, perhaps the most beautifully rendered in the city. On the right side of the church, above the cappella di San Mauro, is a monumental organ dating from 1558. Constructed by Onofrio Zeffirini da Cortona (1510–86), it's largely intact but is missing its 16th-century keyboard.