Felix, who had for some time been governor of Judaea, and thought that he could do any evil act with impunity, backed up as he was by such power.
Ann Book XII Chapter 54: Problems in Judea

Antonius Felix, indulging in every kind of barbarity and lust, exercised the power of a king in the spirit of a slave.
His Book V Chapter 9: The Jews. Their history according to Tacitus (cont.)