Searching for material on John Scotus Eriugena, I was surprised to learn Pope Benedict XVI had made an address about him on 10th June 2009. It’s a solid summary in 2 minutes; the text is available for those who prefer it.
Today I would like to speak of a noteworthy thinker of the Christian West: John Scotus Erigena, whose origins are nonetheless obscure. He certainly came from Ireland, where he was born at the beginning of the ninth century, but we do not know when he left his Island to cross the Channel and thus fully enter that cultural world which was coming into being around the Carolingians, and in particular around Charles the Bald, in ninth-century France. Just as we are not certain of the date of his birth, likewise we do not know the year of his death but, according to the experts, it must have been in about the year 870.