Angrivarii
The wars began in the last years of the reign of Augustus, first emperor of Rome. Augustus died an old but respected man in the year 14 and was celebrated with much pomp and splendor. He left a document to be read to the senate posthumously, expressly forbidding extension of the empire beyond the Rhine. News of the will was welcomed by the Germans, thinking it gave them a free hand in the region. Germanicus found it necessary to pacify the border, which he did by a combination of scorched earth raids and offers of alliance with Rome - in short, stick and carrot. These raids also kept the army of the lower Rhine distracted from the possibility of mutiny, which had broken out on Augustus's death and only been quelled by concessions and executions.
List of Roman emperors
The Roman emperors were rulers of the Roman Empire, wielding power over its citizens and military, dating from the granting of the title of to Gaius Julius Caesar Octavianus by the Roman Senate in 27 BC. Augustus maintained a façade of republican rule, rejecting monarchical titles but calling himself (first man of the senate) and (first citizen of the state). The title of Augustus was conferred on his successors to the imperial position. The style of government instituted by Augustus is called the Principate and continued until reforms by Diocletian. The modern word 'emperor' derives from the title , which was granted by an army to a successful general; during the initial phase of the empire, it still had to be earned by the .