Suetonius

Gaius Suetonius Tranquillus (c. 69 – c. 130/140 CE), better known simply as Suetonius, was a Roman writer whose most famous work is his biographies of the first 12 Caesars. With a position close to the imperial court he was able to access otherwise private sources for his work, and he certainly did not hold back on revealing the sometimes sordid details of Rome's most famously debauched emperors.