According to the Medjugorje visionaries she does:
In what language does Our Lady speak to the visionaries?
Our Lady speaks Croatian to the visionaries. During some of the apparitions, they have heard Our Lady pray in Her Motherly Hebrew tongue or Latin.http://www.medjugorje.com/medjugorje/questions-and-answers.html#31a
I guess that’s proof that Latin is the Heavenly language.
