His masterpiece is the equestrian statue of Charlemagne at the base of the Scala Regia on the entrance to the Vatican Palace, which sits opposite Bernini's equestrian Constantine. His works can also be found in Orvieto Cathedral and in the Basilica of Superga in Turin.
The renowned artist's most notable creation is a horse statue of Charlemagne situated at the base of the Scala Regia within the Vatican Palace, directly opposite Bernini's equestrian Constantine. The artist's other notable pieces can be found in Orvieto Cathedral and the Basilica of Superga in Turin.