Where does “Reggio Calabria” come from?

Reggio Calabria (English) comes from Italian Reggio Calabria, from Italian Reggio, from Latin Rēgium, from Latin Rhegium, from Ancient Greek Ῥήγιον.

Ancestry of “Reggio Calabria”, step by step

Step	Language	Word	Meaning
1	Italian	Reggio Calabria	—
2	Italian	Reggio	—
3	Latin	Rēgium	—
4	Latin	Rhegium	—
5	Ancient Greek	Ῥήγιον	—