Daleia, the story you are talking about is Always, No Matter What by DravenStar. I am a different person, but this is why it sounds the same.

First of all, I was going to use a different place for it, because I, too, thought this writer made it up, but I noticed other people used it, too. Then I thought they asked permission, and it was granted. Then, when I was playing Jedi Knight: Jedi Academy, there was a mission where you went to a planet called Vjun where you had to enter a place called Bast Castle, so I figured out that DravenStar did not make it up, so I figured it would be okay to use.

Also, at first I was only going to make it be Vader and Padme, but then I didn't feel like leaving out Luke, because I liked the fact of Vader training him, so I was going to put him in along with Vader and Padme, but then I didn't want to make him pick up Luke, and not Leia, so I added Leia in there, too.

As for the servant, it is a castle, and it is Vader, so most likely he is going to have servants. That is not the only one. There will be more servants, that is just the only one mentioned in that chapter.