DeVous

French slang for “Of You” an old adage in reverence to the king, men had changed their last names to DeVous to state that they are for them.

Also a famous film maker named Daniel DeVous

“Je suis de vous roi.” > “I am of you king.”

Fun fact, if spelt:
“Je suis DeVous roi.”

As the name is spelt, it actually translates to:
“I am king of you.”