Arnolfo di Cambio

Arnolfo di Cambio (c. 1240 – 1300/1310) was an Italian architect and sculptor of the Duecento, who began as a lead assistant to Nicola Pisano. He is documented as being capomaestro or Head of Works for Florence Cathedral in 1300, and designed the sixth city wall around Florence (1284–1333).

By the end of his career he evidently had one or more workshops of some size, producing work with considerable stylistic variation, and distinguishing his personal hand can be difficult.

Notable works: Dormition of the Virgin and double bust of two apostles, Madonna with Glass Eyes, Saint Peter, Basilica of Santa Croce, Florence Cathedral, Statue of Bonifacius VIII in the Palace of the Popes, Torre of Arnolfo

Source: Wikipedia — https://en.wikipedia.org/wiki/Arnolfo_di_Cambio