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.
Pozzo d'Adda | Maria Vittoria dal Pozzo | Vittorio Pozzo | Carlo Emmanuele dal Pozzo, 5th Prince of Cisterna | Pozzo Ardizzi | Giampaolo Pozzo | Cassiano dal Pozzo | Anne Patrizio | Andrea Pozzo |