The Ara Ubiorum (Altar of the Ubii) was a Roman sanctuary in the Oppidum Ubiorum (modern day Cologne). It was erected in the last decade of the 1st century BC and was dedicated to the goddess Roma and the Roman emperor. It was a central location for the Germans conquered by Augustus to demonstrate their loyalty to Rome and the Emperor through offerings. Like the Ara trium Galliarum, the altar was the site of the concilium provinciae ("pronvicial council") for the planned province of Germania Magna.[1] The priests who serviced the altar were drawn from high-ranking Germans.