Italian family of sculptors and architects, active in Florence. Luca della Robbia (1400-82) created a number of major works in Florence, notably the marble cantoria (singing gallery) in the cathedral 1431-38 (Museo del Duomo), with lively groups of choristers. Luca also developed a characteristic style of glazed terracotta work. Andrea della Robbia (1435-1525), Luca's nephew and pupil, and Andrea's sons continued the family business, inheriting the formula for the vitreous terracotta glaze. The blue and white medallions of foundling children 1463-66 on the Ospedale degli Innocenti, Florence, are typical. Many later works are more elaborate and highly coloured, such as the frieze 1522 on the facade of the Ospedale del Ceppo, Pistoia.