In the first early Middle Ages, the famous Capitol, one of the seven hills of ancient Rome, where popular assemblies

In the first early Middle Ages, the famous Capitol, one of the seven hills of ancient Rome, where popular assemblies and the Senate were once held, was called Goat Mountain. Think about what this name appeared? What does this fact testify to?

I think this name suggests that during the early Middle Ages, cattle (in this case, goats) grazed on the Capitol.
This suggests that the city is practically depopulated. Barbarian invasions led to the plundering of Rome, many Romans were either captured, killed, or fled. Then there were long wars in Italy between the Byzantine armies and the Goths. Rome passed from hand to hand several times. This led to the final decline of the once capital of a powerful empire. Rome consisted of ruins and wastelands.