This particular castellum was thought to be located at the Burcht of Leiden , and the city 's name was thought to be derived from the Latin name Lugdunum .
Leiden has in the past erroneously been associated with the Roman outpost Lugdunum Batavorum .
This particular castellum was thought to be located at the Leiden of Leiden , and the city 's name was thought to be derived from the Latin name Lugdunum .
Leiden has in the past erroneously been associated with the Roman outpost Lugdunum Batavorum .