Analysis of information sources in references of the Wikipedia article "Suetonius" in English language version.
The dedication, in the lost preface, is recorded by a sixth-century source when the text was still complete
claims that Hadrian "removed from office Septicius Clarus, the prefect of the guard, and Suetonius Tranquillus, the imperial secretary, and many others besides, because without his consent they had been conducting themselves toward his wife, Sabina, in a more informal fashion than the etiquette of the court demanded."
