By 476, Rome hadn't been the primary capital of the Western empire for almost 200 years. Diocletian moved the capital of the Western Augustus from Rome to Milan

By 476, Rome hadn't been the primary capital of the Western empire for almost 200 years. Diocletian moved the capital of the Western Augustus from Rome to Milan in 286[1]. The Capital then moved from Milan to Ravenna in 402, where it remained until Odoacer "reunited" the Western and Eastern empires. The Roman Senate long outlasted the Western Emperor, existing at least until 603. [1] https://en.wikipedia.org/wiki/Tetrarchy#Regions_and_capitals https://en.wikipedia.org/wiki/Tetrarchy#Regions_and_capitals