Dark Lord

Dark Lord
Historical information
Established by	Dark Jedi
Notable individuals	Exar Kun Dessel Bane Darth Plagueis Dantius Palpatine
Role
Government	Various; Sith Empire Brotherhood of Darkness Galactic Republic Galactic Empire
Chronological information
Era(s)	Old Republic era Rise of the Empire era Rebellion era New Republic era New Jedi Order era

[Source]

"The power of the dark side is an illness no true Dark Lord would wish to be cured of."

―Darth Plagueis

A Dark Lord, or Dark Lady in a female's case, was an informal title assumed by one who was deemed, or deemed themselves exceedingly powerful in the Dark Side.