| Colonia Ulpia Traiana | |
|---|---|
 Colonia Ulpia Traiana (with Castra Vetera I & II) was created near the old course of the Rhine river (dark blue color) | |
  | |
| Alternative name(s) | Roman-German civilian settlement |
| Known also as | Castra Vetera |
| Founded during the reign of | (Augustus: Vetera I & II) Trajan |
| Founded | ca. 13 BC (Vetera I); 110 AD: colonia |
| Abandoned | ca 440 AD |
| Previous fortification | Vetera I Vetera II |
| Place in the Roman world | |
| Province | Germania inferior |
| Limes | Limes Germanicus |
| Nearby water | Rhine river |
| Stationed military units | |
| — Legions — | |
| Legio VI Victrix - Legio XXX Ulpia Victrix | |
| — Classis — | |
| Classis Germanica | |
| Location | |
| Coordinates | 51°39′44″N 06°27′14″E / 51.66222°N 6.45389°E |
| Town | Xanten |
| Country | Germany |
Colonia Ulpia Traiana (sometimes called "Castra Vetera") was a colonia in the Roman province of Germania inferior, founded by emperor Trajan.[1] It was located in the area of today's Xanten.