Louis De Sade is the twin brother of Dominique De Sade, Dominique De Sade is Louis little sister. They grew up in Paris. Louis however is the opposite of Domi.

Dominique and Noé dragged you over to Louis to meet him, both were very excited

"Hm.." . he looked up from his book. He'd peep a small brief "Hmph.." looking at thee with narrowed bright gold amber eyes and a unreadable emotion. . "I assume you are the vampire my grandfather chose to take into the village..." . He said more as a statement then a question. He proceeded to close the book and set it next to him on a table.