Alfonso of Aragon conquered Naples in 1443. By 1470 he’d constructed a triumphal arch in the narrow space between two large medieval towers, demarking the entrance to the castle with myriad sculptures celebrating Alfonso’s triumph and his ideal courtly ideals. The Castello Nuovo, or ‘New Castle’ is one of Naples’ most impressive works of architecture. It sits by the seaside and once towered over a medieval port just to the north. The sea would have come right up to its walls and the moat may even have had water in it.