Mediomatrici - Authority in Tribe from to
The Mediomatrici were an ancient Celtic people of Gaul, who belong to the division of Belgae. Julius Caesar shows their position in a general way when he says that the Rhine flows along the territories of the Sequani, Mediomatrici, Triboci or Tribocci, and Treviri.

The name "Mediomatrici" has been explained as "the people between the Matrona (Marne) and the Matra."

It appears then that part of the territory of the Mediomatrici had been occupied by Germans before Caesar's time; and that after Caesar's time the German tribes, Nemetes, Vangiones, and Caeracates occupied the Gallic side of the Rhine.
Mediomatrici
Mediomatrici of Tribe