Who said "I have foreseen the end of your order."?

This quote is attributed to Palpatine.

I have foreseen the end of your order. - Palpatine

"I have foreseen the end of your order."

Palpatine

"Did you ever hear the tragedy of Darth Plagueis the Wise?"

"The dark side of the Force is a pathway to many abilities some consider to be unnatural."

"Have you ever heard of the tragedy of Darth Plagueis? I thought not."

"Unlimited power!"