[quote=@TheUnknowable]
[@DragonofTheWest]The only "Sith" with proper training would be Palpatine and Dooku.  Dooku is a minor noble in the Republic that resigned from the Jedi, and both will need to defect.

You can always be from the Empire but not have formal training, or just be a dark jedi.
[/quote]What Empire? This set in the Prequelilogy before the Empire?