Troesmis
| Troesmis | |
|---|---|
| site | |
| Attested by | |
| Previous fortification | Getic | 
| Place in the Roman world | |
| Province | Moesia Inferior | 
| Directly connected to | Arrubium Ulmetum Carsium (Izvoarele) | 
| Structure | |
| — Stone structure — | |
| Stationed military units | |
| — Legions — | |
| 
 | |
| Location | |
| Coordinates | 45°08′36″N 28°11′42″E / 45.1432°N 28.1951°E | 
| Altitude | c. 38 m | 
| Town | Turcoaia | 
| County | Tulcea | 
| Country | Romania | 
| Site notes | |
| Condition | Ruined | 
Troesmis was an ancient Dacian town and later ancient Roman city and legionary fortress, a major site situated on the Danube and forming a key part of the Limes Moesiae frontier system. Around the fortress the Geto-Dacian town developed.
It is situated in what is now Romania near Igliţa-Turcoaia.
Between 107 and 163 it was the home of the Roman Legio V Macedonica. The Notitia Dignitatum shows that in 337–361 it was the headquarters of Legio II Herculia.