Valerio Belli

[1] Castings of many of the crystal carvings were taken in wax and them used to make metal plaquettes, which Belli also designed and made de novo.

He was mentioned by the art historian Giorgio Vasari, and drawn by Parmigianino (now Museum Boijmans Van Beuningen).

Another profile portrait bust in stone relief is in the Victoria and Albert Museum,[3] and there is a similar self-portrait medal.

A small round portrait, dated 1517 and formerly owned by Kenneth Clark (now in the Juan Abelló collection, Spain), may be by Raphael.

[4] His most famous work is a casket, now in the Pitti Palace in Florence, commissioned by Pope Clement VII as a wedding present to the future King Henry II of France and Catherine de' Medici.