Pastiglia

White lead pastiglia on an Italian casket, late 15th century, with Marcus Curtius at left, British Museum.[1]
The casket made for Cardinal Bernardo Clesio, whose arms allow it to be dated to 1530–38, V&A
Portrait of a Man with a Medal of Cosimo the Elder, Botticelli, with pastiglia medal

Pastiglia [paˈstiʎʎa], an Italian term meaning "pastework", is low relief decoration, normally modelled in gesso or white lead, applied to build up a surface that may then be gilded or painted, or left plain. The technique was used in a variety of ways in Italy during the Renaissance. The term is mostly found in English applied to gilded work on picture frames or small pieces of furniture such as wooden caskets and cassoni, and also on areas of panel paintings,[2] but there is some divergence as to the meaning of the term between these specialisms.

On frames and furniture the technique is in origin a cheaper imitation of woodcarving, metalwork or ivory carving techniques. Within paintings, the technique gives areas with a three-dimensional effect, usually those representing inanimate objects, such as foliage decoration on architectural surrounds, halos and details of dress, rather than parts of figures. In white lead pastiglia on caskets, the subject matter is usually classical, with a special emphasis on stories from Ancient Roman history.

  1. ^ British Museum page
  2. ^ National Gallery glossary Archived 2012-02-05 at the Wayback Machine; the term is sometimes italicized in English, and sometimes not, though in "white lead pastiglia" more often not.