The Arco di Riccardo (literally, "Richard's Arch") is a Roman triumphal arch in Trieste, Italy.
The 7.2 metre arch is the only remaining part of the city's Roman walls, constructed from 33–32 BC.
[1][2] Folk etymology credits the arch's name to Richard the Lionheart (Italian: Riccardo Cuor di Leone), the Crusader king of England, who is known to have been in the vicinity in the early 1190s.
[2][1] Throughout the Middle Ages, the arch remained mostly visible, though sometimes incorporated into buildings.
Its western side was fully excavated in 1913, though the eastern one remains incorporated into a modern building.