Miller's Cockaigne is obviously Poictesme's slightly more brazen West Coast sister, what happens when fantasy gestates into historical romance. To Cabell, there was no functional difference. It was all a table where dreams could be housed and desires indulged.
This frustrates genre-blindered critics and the fans what follow.
Our miniatures campaigns are all "medieval" and all "fantastic" in every bone. Before the war split the world into Plantagenets & Valois, wake-world & otherwise. Before the flood.
The follow-on question for students of the world before genre is then how Averoigne really fits into the cycle of wanting, having & being, there among the headmasters in the school for ghouls.
There is of course a real town, known to the vulgar as Riom & aux amoureux de science by a different name. Like it or don't, Rabelais posited an abby there.
"Once I gave it a name, this terrain vague: I called it Ubiguchi, but somehow Ubiguchi never satisfied me. It was too intelligible, too full of meaning. It would be better to keep it just terrain vague, which is what I intend to do. People think that vacuity is nothingness, but it is not so. Vacuity is a discordant, a crowded ghostly world in which the soul goes reconnoitering. As a boy I remember standing in a vacant lot as if I were a very lively soul standing naked in a pair of shoes." - Henry Miller