What is "regisole"

The Regisole ("Sun King") was a bronze classical or Late Antique equestrian monument, highly influential during the Italian Renaissance but destroyed in 1796. It was originally erected at Ravenna, in what is now Italy, but was moved to Pavia in the Middle Ages, where it stood on a column before the cathedral, as an emblem of communal pride and Pavia's deep connection with imperial Rome.