According to wikipedia:
[Gemistus Plethon] was a Greek scholar of Neoplatonic philosophy. He was one of the chief pioneers of the revival of Greek learning in Western Europe. In the dying years of the Byzantine Empire, he advocated a return to the Olympian gods of the ancient world.
I have read history books on Byzantium which touch only briefly on Gemistus Plethon. I have also just read his wikipedia article.
I will admit, the wikipedia article makes out Plethon's religious views to be very confusing (at least to me). It makes mention of Greek Polytheism, Zoroastrianism, Esotericism and belief in a single "supreme being".
Yet at the same time, he was also well versed in Christian theology and held opinions on how to best resolve the conflicts facing the Orthodox Church and the Catholic Church.
I guess my real question is, was Plethon an actual worshipper of the ancient Greek gods? or was he just a dissenter who combined heaps of beliefs from ancient cultures to form his own kind of religion? Did he ever claim himself to be a polytheist?