The Sagrestia Vecchia di San Lorenzo, or Old Sacristy of San Lorenzo, is the older of two sacristies of the Basilica of San Lorenzo in Florence, Italy. It is one of the most important monuments of early Italian Renaissance architecture.[1] Designed by Filippo Brunelleschi and paid for by the Medici family,[2] who also used it for their tombs, it set the tone for the development of a new style of architecture that was built around proportion, the unity of elements, and the use of the classical orders. The space came to be called the "Old Sacristy" after a new one was begun in 1510 on the other side of S. Lorenzo's transept.[2]