The church of Santa Maria Assunta in Staggia Senese, in the commune of Poggibonsi, is a building with Romanesque origins that was heavily restored at the start of the 20th century.
The church houses a collection of sacred art. Among the conserved works of art are: the "Maddalena comunicata dagli Angeli" by Antonio del Pollaiolo (painted in the 1560s), the 15th century "Adorazione dei Magi" by Francesco Botticini, a "Madonna col Bambino" from the Siena area (mid 14th century), a precious gothic ostensory of guilded copper (second half of the 14th century), a "Visitazione" by Giovanni Maria Butteri (1574), and a "Cristo in Pietà" by Arcangelo Salimbeni (1579).
The collection provides a condensed history of the strategically important Staggia Castle which was constantly fought over by the Sienese and the Florentines. For this reason, between the 14th and 16th centuries, important works of art were commissioned for the Staggia church in both Florence and Siena.