GUGLIELMO of Pisa. — Sculptor active in Pisa from 1159 to 1162 for the pulpit of the cathedral, later moving to Cagliari to be replaced by that of Giovanni Pisano.
In this work, the various scenes, where figures are presented wearing garments with thin, closely spaced parallel folds, skillfully arranged against a background adorned with decorative motifs, in a clear spatial vision, tend toward pictorial effects of light contrasts. The sculptor shows connections with Lombard art (for which his Lombard origin has been supposed), with Byzantine art, with Provençal art (sculptor on the facades of St-Gilles and St-Trophime), as well as echoes of that pictorial style found in Roman sarcophagi of the 4th century. His work is echoed in that of many followers, such as Graumonte and Biduino, not to mention the numerous anonymous artists who left works in the region.