The most commonly accepted etymology for "Auteuil" is something like "high place" or "high clearing". Nothing to do with stones, unfortunately.
Before its incorporation into Paris in 1860, the village of Auteuil became popular in the 17th century as a country retreat for the wealthy, but before that, mentions in my documentation are sparse. I'll try to look further in the coming days.
There are two villages of the same name in France :
• Auteuil, in the Oise departement, North of Paris.
• Auteuil or Auteuil-le-Roi, in the Yvelines departement, West of Versailles.
Both are small, unremarkable villages, with populations in the 500-1,000 range.
Of these two, the best candidate might be Auteuil-le-Roi, because some Neolithic vestiges has been found there (just cut stones).
(Other places named "Auteuil" might exist as part of other municipalities elsewhere, but looking for this level of detail would need... well, more than a few Library rolls )
If we go back to Paris, pre-Celtic standing stones have indeed been found there - there is at least a "rue de la Pierre-Levée" in the 11the arrondissement. So, placing "stone pillars" in Auteuil is not implausible, it's just that conventional archeology have not found them - yet.
We can also go for something more modern, but nothing evident comes out of the "pillar" angle. The old Auteuil had its share of 18th and 19th Century architecture, so we can assume plenty of neo-Classical columns, but nothing strange or original enough to be remarkable.
Oh, and I'd be vary of the "druidic forest" thing applied to the bois de Boulogne. There is no archeological proof of its existence. The bois was used by druids, for sure, but they belonged to the "19th century occult Renaissance" type - white robes, beards and more than a touch of excentricity.
Edited by Tristan, 17 February 2016 - 08:50 AM.