Carlo Maderno

Carlo Maderno or Maderna (1556 – 31 January 1629) was an Italian

In addition, he worked on the Quirinal Palace, the Papal Palace of Castel Gandolfo His design of palaces is best represented by his design of Palazzo Mattei (1598–1618).

Maderno was called upon to design chapels within existing churches: the Chapel of St. Lawrence in San Paolo fuori le Mura and the Cappella Caetani in Santa Pudenziana.

He designed the base supporting the Marian column in front of Basilica di Santa Maria Maggiore, which later served as a model for numerous Marian columns. At Ferrara, he designed the fortifications.

The last work by Maderno at St. Peter's was a crypt-like space under the dome that is referred to as the "Confessio". From there, privileged persons such as cardinals could descend in order to be near the burial place of Saint Peter. Its marble steps are remnants of the old basilica. Around the balustrade of the Confessio are 95 bronze lamps that remain lit perpetually.

Maderno died in Rome on 31 January 1629, at the age of 73; his body was buried in the church of San Giovanni dei Fiorentini.