The real name of the actress who plays the magnificent Angelique is Jocelyne Yvonne Renée Mercier. Producers didn’t like it because it was too long and old-fashioned, in their opinion. That was why Jocelyne was replaced with Michèle. This was the name of her younger sister who died at the age of 5 from typhoid fever.
Legal, not real. Legal ownership of the woman is transferred to the man and she has to be identified by his name ever after.
Break those shackles, girls, let no man own you.