However, because Gregory described her family's kingdom of Thuringia as being on the Gaulish or western side of the river Rhine, it is sometimes thought to be the Civitas Tungrorum, which is now Belgium.
The uncertainty surrounding Gregory's kingdom's location stems from her description of it being on the Gaulish or western bank of the Rhine River, which has led some to consider the possibility that it might be the Civitas Tungrorum, currently located in Belgium.