What is the title of the 1934 Robert Graves novel written as a fictional autobiography of a stuttering Roman emperor who survived the purges of his family?

I, Claudius

The novel and its sequel, 'Claudius the God,' were adapted into a highly acclaimed 1976 BBC television series. Graves used ancient sources like Suetonius and Tacitus to reconstruct the political intrigue of the Julio-Claudian dynasty.