Little has been revealed about Darth Sidious former master, the Sith Lord Darth Plagueis, in Star Wars canon. This is everything we know so far.

Star Wars just doubled down on the idea that Palpatine never really cared about the Sith's Rule of the Two, a core principle ...

The inclusion of Darth Plagueis in Star Wars: The Acolyte is a topic of much speculation among fans. At the time of writing, there has been no official confirmation about his appearance in the series.

Seeing what his master was achieving inspired Darth Sidious to murder Plagueis in his sleep – something Plagueis was too distracted (by his quest for power and immortality) to see coming.

Redditor wentzitcame claims that R2 is none other than Darth Plagueis, Darth Sidious’ master. You recognize his name from the iconic Mon Calamari Ballet scene of Revenge of the Sith, ...

This is the Sith who appears at the end of ‘The Acolyte’ It is only a cameo and he is not named, but the Sith is almost certainly Darth Plagueis, Darth Sidious’ master.

In ‘Darth Plagueis’, Sidious took the baby and left him in the hands of droids for initial training. His master knew of Maul’s existence, but asked his apprentice to instruct him in the dark ...

Despite Maul's big comeback, though, his former Master Darth Sidious (AKA the future Emperor Palpatine) never took him back as his apprentice, instead sticking with Maul's replacement, Count Dooku.

Darth Vader's lightsaber was powered by a crimson synth-crystal with Darth Sidious’ lightsaber serving as a model.. However, Vader considered his master's weapon to be an antique, and sought to ...