Palazzo Re Enzo (palace) built
1250 CE.
Shown on the map at 44.494°, 11.343°.
Palazzo Re Enzo is a palace located on Piazza del Nettuno, 1 in the historic center of Bologna, northern Italy. The palace takes its name from Enzio of Sardinia, Frederick II's son, who was prisoner here from 1249 until his death in 1272. The palace is presently used to sponsor cultural events and exhibitions.
Text from the Wikipedia article Palazzo Re Enzo, licensed CC BY-SA 4.0.