Gherardo Silvani [SEP] date of birth
Gherardo Silvani
Gherardo Silvani (1579–1675) was an Italian architect and sculptor, active mainly in Florence and other sites in Tuscany during the Baroque period. 
Biography.
His son Pierfrancesco also became an architect. He worked on the Palazzo Corsini al Prato, Palazzo Capponi-Covoni (1623), Palazzo Fenzi (1634), Palazzo Pallavicini, Palazzo di San Clemente. He also helped design and construct the altar of the Basilica di Santo Spirito. He helped in the reconstruction of the churches of San Frediano, Santi
Pier Francesco Silvani
Pier Francesco Silvani (1620–1685) was an Italian architect and designer, active during the Baroque period, in Florence and other sites in Tuscany.
He was the son of the Sienese architect Gherardo Silvani. After the confiscation of goods decree in 1536, introduced by Cosimo I, the Grand Duke of Tuscany, Silvani was forced to pursue a modest commercial career. He had three sons, Silvano Silvani, Salvatore Silvani and Gherardo Silvani. Pier Francesco worked on San Gaetano and in the refurbishment of San Marco