The two most significant components to an emperor's " imperium " were the " tribunician powers " and the " proconsular powers ".
32.
Therefore, as a'concession', he gave up his Consulship, and modified both his Proconsular " imperium " and his Tribunician powers.
33.
In AD 22, he shared his tribunician authority with his son Drusus, and began making yearly excursions to Campania that reportedly became longer and longer every year.
34.
By means of comparison, a Briton Germanus is recorded as having met seventeen years earlier, in 429, is described by Constantius as being of tribunician rank.
35.
The " tribunicia potestas ", or tribunician power, was limited by the fact that it was derived from the oath of the people to defend the tribunes.
36.
Late in 48, Caesar was named dictator " rei gerundae causa " with a term of one year, and granted the tribunician power for an indefinite period.
37.
In 23 BC, Augustus ( as Octavian now called himself ) gave up his Consulship, and expanded both his Proconsular " imperium " and his tribunician powers.
38.
Now they had a demand, the restoration of tribunician power ( i . e ., the reinstatement of the plebeian tribunes ) and they would stand firm to obtain this.
39.
In 48 BC, Caesar was given permanent tribunician powers, which made his person sacrosanct, allowed him to veto the senate, and allowed him to dominate the Plebeian Council.
40.
Whilst effectively giving Augustus legislative supremacy, the honour of tribunician power had popular connotations, harking back to the traditions of the republic, and was thus not offensive to the aristocracy.
