With the fall and death of Sejanus in the year 31, not only was the family of the praetorian prefect killed but many of his supporters were either exiled or also murdered.
[5] Gaetulicus remained governor past the death of Tiberius into the reign of Caligula, when a misstep in the year 39 by the former brought him down.
In September 39, Caligula left Rome and proceeded to Moguntiacum, the capital of Germania Superior, accompanied by his sisters and Lepidus.
[7] On 27 October word of the nefaria consilia had reached Rome, when the Arval Brethren celebrated a thanksgiving for its suppression.
He wrote a history or set of memoirs that Suetonius used as a source for his De vita Caesarum and Tacitus his Annals.