My dear mother was named Mary for her father's mother and Ann for her mother's mother. For most of her life she signed her name Marianne, because she didn't like being called Mary, and the French spelling looked more elegant. There was never any trouble over that name change, any more than there was trouble over my father's mother altering her name from Jane to Jean. (Both sides of my family name girls after their grandmothers. My sister avoided it simply because mom's mother was named Bessie Irene, and one of those was enough.)