Like I said, from memory
A: Sate Pestage is Palpatine's "Grand Vizier." He was the Emperor's trusted advisor, and during the PT, he was a senatorial aide.
I assume he died at hands of Admiral Krennel (The Rogue Squadron comics), but apparently, that was a clone, and the real pestage retired to Byss to await the Emperor's return. He died when Byss was destroyed. I guess the Byss part would be in the Dark Empire comics. I don't remember that though...
Since I'm sure I answered it right, I'm gonna ask a question.
Q: What is the importance of Drongar during the Clone Wars?