The theonym is known only from a single inscription found with a representation of the god discovered at Noviomagus Trevirorum, now Neumagen-Dhron in Germany.
Isenburg-Neumagen was the name of a state of the Holy Roman Empire, based around Neumagen-Dhron in modern Rhineland-Palatinate, Germany.
Noviomagus Trevirorum - Neumagen-Dhron near Trier, Rheinland-Pfalz, Germany - the modern name is derived from Noviomagus
There were only two counts of Isenburg-Neumagen, and at their extinction it passed to the Counts of Sayn-Homburg.