At the end of Darth Plagueis, Sidious does more than murder his master. He takes the whole Sith victory away from him.
Plagueis believed he had guided the Grand Plan for decades. He found Palpatine, shaped him, funded the political moves, and helped push the galaxy toward the crisis that made Palpatine Chancellor.
But when Sidious finally kills him, he makes one thing clear: in his mind, Plagueis was never the true master of the plan. He was part of it.
So was Sidious right? Or was he just stealing credit from the man who built the path he used?
Table of Contents
Plagueis Built The Framework
Sidious could not honestly say the plan began with him. By the time Palpatine became useful to the Sith, Plagueis had already spent years building the kind of power the Jedi could not easily see.
As Hego Damask, Plagueis had money, banking influence, political access, and connections across the Republic’s power structure. He was not trying to defeat the Jedi in open war. He was helping build a system where the Sith could move through corporations, senators, trade disputes, elections, and public fear.
Palpatine’s rise also came through Plagueis’ design. Plagueis found him on Naboo, recognized what he was, and helped shape him into a Sith who could survive inside politics. He did not just train Palpatine to use the dark side. He placed him on the road toward the Senate, then toward the Chancellorship.
The Naboo crisis was part of that framework. It created the emergency Palpatine needed. Queen Amidala’s vote of no confidence removed Valorum, and Palpatine stepped into the gap at the exact moment the Republic was looking for a stronger leader.
None of that happened because Sidious acted alone. Plagueis helped create the conditions that made Sidious’ victory possible.
Sidious Had Already Taken Control of the Plan
Plagueis built the framework, but Sidious was never only following orders. He was already creating a Sith future that did not include his master.
The clearest proof is Maul. Sidious trained him in secret while Plagueis was still alive. That means Sidious was already acting like the true Sith Master before he officially killed Plagueis. Maul was not just an assassin. He was Sidious preparing his own weapon outside his master’s control.
Sidious also understood politics better than he let on. As a young man, he acted bored by public life and disgusted by the games of power, but that was never the truth. Once he entered the Senate, he learned how to hide ambition behind patience. He knew when to appear loyal, when to appear harmless, and when to let other people believe they were using him.
That is where Sidious became more dangerous than Plagueis. Plagueis had wealth, influence, and long-term vision. Sidious had timing. He knew when the Naboo crisis had done its job. He knew when Valorum was finished. He knew when the Chancellorship was close enough to take.
By the time Palpatine became Supreme Chancellor, Plagueis thought the plan had reached their shared victory. Sidious saw something else. He saw that his master had become the last piece that needed to be removed.
Plagueis Thought He Could Break the Sith Cycle
Plagueis’ mistake was believing the Sith could reach the final stage of the Grand Plan without the apprentice killing the master.
By the end of the novel, he no longer wanted the old cycle. He did not want Sidious to replace him. He wanted both of them to rule together, with Palpatine controlling the Republic in public while Plagueis stayed behind the scenes as the hidden power.
That was not how Sidious saw it. To him, Plagueis had become exactly what every Sith Master eventually becomes: the obstacle.
Plagueis was also distracted by the one thing Sidious knew how to exploit. He wanted immortality. He wanted control over life, death, and midi-chlorians. After the assassination attempt left him physically damaged, that obsession only grew stronger. While Sidious moved deeper into politics, Plagueis kept chasing the secret that would let him survive forever.
That is what made the ending so brutal. Plagueis thought he was close to breaking the Sith pattern. Sidious proved the pattern still owned him.
The moment Palpatine became Chancellor, Plagueis believed the two of them had won. Sidious saw the opposite. The public victory made Plagueis unnecessary.