2.
Jeanne had always been interested in France and their language. One day she was sitting in the local church praying as she did most days of the week when she was able to make it when she heard the smooth tones of the language. Curious she had picked her head up and spotted a Nun that she had not recognized. After the Sister was done speaking with the Father Jeanne had moved closer to where the nun was, hiding.
Of course Jeanne at the time was only about 6 years old so she was not the best hider and the sister knew she was there. She had introduced herself as Elise Arcand and told the young girl she had been transferred there from a church in France because she had family living in England.
Jeanne had also introduced herself and when Elise had pronounced the young girls name the French way something had sparked in deep in the girls chest. From then on she only let people pronounce her name that way. Elise had also taken to tutoring the young girl in french when she had expressed a deep interest in the language.
Even though Jeanne had her Aunt, Elise had become something like a mother to her. Even after going to Hogwarts and the war she always had Elise to turn to when she needed comfort and a trustful ear.
So that's why when Elise asked her if she wanted to travel to France with her after her 18th birthday Jeanne agreed quickly.