The Fontana del Formiello is a historic public fountain located at the rear exterior of the Castel Capuano, facing Piazza Enrico de Nicola, and across the street from the church and convent of Santa Caterina a Formiello in Naples, Italy. The term Formiello comes from the forms or containers for water spouts found in the convent. The fountain had been placed in storage during the late 19th century, and reconstructed at this site in 1930.
Mastro Joseppe and Michel De Guido were commissioned in 1573 to reconstruct a medieval fountain, originally called Fontana Reale con Abeveratoio, suggesting it was a watering station for horses. Three lion masks disgorge water, while the superior structure has a heraldic shield of the viceroy. The Shield is that of Don Pedro Tellez Giron, Duke of Osuna.
Wikipedia https://en.wikipedia.org/wiki/Fontana_del_Formiello,_Naples
Address 72 Piazza Enrico De Nicola, Napoli 80139, Italy
Coordinates 40°51'13.821" N 14°15'52.829" E