system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Who were Darth Plagueis’s loved ones?

Palpatine mentioned them to Anakin at the opera: “He had such a knowledge of the Dark Side, he could even keep the ones he cared about from dying.” 

Who were they? Did they even exist? Or was Palpatine just making them up to manipulate Anakin?
gpt
First, "cared about" isn't the same as "loved ones". There are many, many reasons why you'd care to keep someone alive, and not all of them are good intentioned.

With that said, yeah, those words are meant specifically to manipulate Anakin.