Marie-Jeanne Abadie is not mentioned in the provided text.
The provided text is a list of notable people from the historical region of Occitania or with significant ties to it. It includes writers, playwrights, poets, philosophers, and thinkers from various historical periods. The list acknowledges that while many individuals have Occitan heritage or lived in the region, their primary language of work was often French, leading to a complex definition of 'Occitan historical heritage'. The extract details individuals known for their literary works, philosophical contributions, and roles in historical movements, spanning from ancient Roman times to contemporary figures. It highlights a diverse range of individuals, including troubadours, Renaissance writers, Enlightenment thinkers, and modern authors, many of whom are recognized for their impact on French and European culture.