Work on the new "avant-garde" palace was initially supervised by two artisans from Italy: Francisco from Florence and Bartolommeo Berrecci, and after their deaths by Benedykt from Sandomierz. A feature of the rebuilding were the large, light rooms which open from tiered arcades lining a courtyard. The new rooms and halls included the ornate Deputy Hall with its coffered ceiling, exemplifying the skills of both Italian and Polish craftsmen. To decorate the palace's rooms, Sigismund (and later his son) purchased over 350 tapestries, collectively known as the Jagiellonian tapestries; they were woven in the Netherlands and Flanders; many based on designs by Michiel Coxie.