Worms was in ancient times a Celtic city named "Borbetomagus", perhaps meaning "water meadow". Later it was conquered by the Germanic Vangiones. In 14 BC, Romans under the command of Drusus captured and fortified the city, and from that time onwards a small troop of infantry and cavalry were garrisoned there. The Romans renamed the city as "Augusta Vangionum", after the then-emperor and the local tribe. The name does not seem to have taken hold, however, and from "Borbetomagus" developed the German "Worms" and Latin "Wormatia"; as late as the modern period, the city name was written as "Wormbs". The garrison grew into a small town with a regular Roman street plan, a forum, and temples for the main gods Jupiter, Juno, Minerva (whose temple was the site of the later cathedral), and Mars.