The Vils river has a tight bend where the castle (German: Burg) is located: thus the name Vilseck.

The town is geographically separate from a nearby large American military base known as the Rose Barracks, but more commonly referred to as Vilseck.

At this time a "Burg" (castle) on an elevated place was often called an Eck; thus the name Vilseck derived from: City next to the Vilsburg.

It is also possible that the name comes from the fact that the city is situated on the Vils on a west-to-east stretch between two distinct 90-degree bends in the river.

Destruction of the castle by Emperor Heinrich IV during a devastating campaign against Berengar from Sulzbach.

Construction of choir aisle and nave on Romanic foundation, remaining from 11th century, at the church in Schlicht.

Castle is attacked, plundered and burned down by the knights Hans Pflug and Hand Selbitz, comrades-in-arms of Götz von Berlichingens.

Local villages, like Gressenwöhr, Irlbach, Langenbruck, Schlicht and Sigl, become political structured communities.

After authorization through King Ludwig I. the Landgericht (County Court) is set in the Vilseck cityhall.

In this timeframe a "Vilseck District" exists as major regional authority with the communities of Adlholz, Ehenfeld, Gebenbach, Gressenwöhr, Großschönbrunn, Hahnbach, Iber, Irlbach, Kürmreuth, Langenbruck, Massenricht, Schlicht, Seugast, Sigl, Sigras, Süß, Vilseck and Weißenberg .

Construction of the Grafenwöhr Training Area North, with displacement of larger parts of the Vilseck Bürgerwald.

For the extension of the Grafenwöhr Training Area several villages, like: Langenbruck, Altenweiher, Altneuhaus, Bernhof, Betzlhof, Erzhäusl, Fenkenhof, Grünwald, Hellziechen, Kittenberg, Schindlhof, Schmierhütte and Wirlhof had to be evacuated.