My translation "Probably a very old variety originating from the Bas-Languedoc.
Long living, the aspiran variety displays an elegant poise and shape in its leaves and bunches. In the departments of the Bas-Languedoc it is [in 1890] usually the preferred table grape for eating. It is delicious and wholesome and very moreish, one can east vast quantities. No other variety is lighter, more agreeable and easier to digest".
A big hope is Domaine Thierry Navarre at Roquebrun who has rescued and grafted some vines and is now making a Ribeyrenc. I now need to seek this out.
Other references I have found are Wikipedia en.wikipedia.org/wiki/Aspiran_Noir
And a fiche in French from INRA
The dossier on the médiathèque exhibition is here (for now) dossier-cepage.pdf