#Moesia Inferior
- Abrittus — An ancient Roman city and major fortress in the province of Moesia Inferior, located near the modern town of Razgrad in northeastern Bulgaria; famous in history as the site of the Battle of Abrittus in 251 AD, where the Roman Emperor Decius and his son Herennius Etruscus were defeated and killed by the Goths led by King Cniva.
- Arrubium — The ancient designation of a Roman castrum and fortified civil settlement situated in the province of Moesia Inferior, archaeologically located on the current territory of Măcin town in Tulcea County, Romania. The fortified site held an essential strategic role within the Danubian limes defensive network, securing fluvial traffic monitoring and the imperial border's protection against trans-Danubian migratory incursions.