Fectio - Credit: Wikimedia Commons
Fectio, known as Vechten in Old Dutch, was a Roman castellum in the province Germania Inferior established in the year 4 or 5 AD. It was located at the place where the river Vecht (Fectio) branched off from the Rhine, leading to Lake Flevo, which was later to become the Zuiderzee.Map of "Fectio castrum" location This was near the modern hamlet of Vechten in the municipality Bunnik, Utrecht, Netherlands. Read more on Wikipedia
Source: en.wikipedia.org