Q: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
The Confederation of the Rhine ( ; French : officially " " ( " Confederated States of the Rhine " ) , but in practice " " ) was a confederation of client states of the First French Empire .
A:
The Confederation of the Rhine was a client state of First French Empire .