Sienese painter active during the 13th century. Nothing is known of his life, and his only certain work is a Madonna and Child in the Palazzo Pubblico, Siena. The picture bears an inscription with the date 1221, but this has been the subject of much controversy, as stylistically the painting seems to belong about half a century later. It has been suggested that the inscription may have some commemorative purpose, the significance of which is now lost, rather than being a record of the date of execution.
Text Source: The Oxford Dictionary of Art and Artists (Oxford University Press)