Richborough Castle fighting moved north, Rutupiae became an increasingly large civilian settlement. There were temples, an amphitheatre (visible as a hummock in the grass 5 minutes walk from the main site), and a "mansio" (first built in 100, it was a building that went through several phases, being a hotel for visiting officials, bath house and administration building). As a port, the town always competed with Portus Dubris (modern Dover), about south along the coast. However, Richborough was widely regarded throughout the Roman Empire for the quality of its oysters. They are mentioned as on a par with those from the Italian
Port Hercules the Greek demigod and mythological hero Hercules, also later adopted by the Romans, who was said to have constructed the ancient path that passed through the region from Spain to Italy. The Roman emperor Julian also wrote of Hercules's construction of Monaco's port and a coastal road. The road was dotted with altars to Hercules, and a temple dedicated to him was established on the Rock of Monaco. The name Port Hercules was subsequently used for the ancient port. "Monoeci" meaning "Single One" or "Monoikos" meaning "Single House" could be a reference to Hercules or his temple, or the isolated