[3] Though working chiefly in Siena, he also was established for a time in Pistoia,[1] and received numerous commissions from different popes.
[3] In 1265 he received two significant commissions: the first was for a large golden chalice ("calicem magnum di auro") weighing about 11 pounds and a corresponding paten, both of which are now lost; the second was for an elaborate gold-plated silver book cover.
[1] Other notable works attributed to him include the chalice of San Atto made c. 1270,[2] and numerous figures in the late 13th-century Altar of St. James found the Pistoia Cathedral.
[4] Some art historians suggest that he made the reliquary of San Galgano's head, now found in Siena's Museo dell'Opera del Duomo,[5] although this is disputed by others.
[3] He was the first Sienese goldsmith to work for the papal court (under popes Nicholas III, Martin IV, Honorius IV, and Boniface VIII)[3] and was actively working for Boniface VIII in the region of Montefiascone until at least 1296.