"The only ones who could cover for Rejina and the Princess of Gold are you and Islo,
correct?" my master whispered.
For the first time, at those words, the Princess of Silver and her maid began to waver.
"And the reason it couldn't be Islo is Trimmau. If it was the Grand Touko Aozaki or Lord
Valueleta, then putting a stop to Trimmau would be possible. Even Atram Galiasta
might be able be able to accomplish that."

The Case Files of Lord El-Melloi II, Volume 3, Chapter 3, Part 4