Albornoz fortress

The Pozzo di San Patrizio (English: "St. Patrick's Well") is a historic well in Orvieto, Umbria, central Italy. It was built by architect-engineer Antonio da Sangallo the Younger of Florence, between 1527 and 1537, at the behest of Pope Clement VII who had taken refuge at Orvieto during the sack of Rome in 1527 by the Holy Roman Emperor Charles V, and feared that the city's water supply would be insufficient in the event of a siege.

The Chiana [kjaːna] (Latin: Clanis or Glanis, Ancient Greek: Κλάνις or Γλάνις) is a river in the Italian region of Tuscany. It is about 42 km long. It begins in the Apennines of Arezzo, runs through the valley of Chiusi, and flows to the inflow of Paglia just past where the Orvieto flows into the Tiber.