Did adherents of apocatastasis in the early church believe that the devil and his demons would be restored?

While reading a [fascinating answer on universalism and apocatastasis](https://christianity.stackexchange.com/a/12287/21576) , I found [1 Corinthians 15:28](https://www.biblegateway.com/passage/?search=1+corinthians+15%3A28&version=ESV) quoted as evidence for the idea that all people will ultimately be restored/saved: > When all things are subjected to him, then the Son himself will also be subjected to him who put all things in subjection under him, that God may be all in all. (ESV) According to the linked answer, Origen believed that "all would eventually be reconciled to God," a sort of Christian universalism. But I notice that 1 Corinthians 15:28 doesn't say "all people" – it says "all things." And it would seem that the devil and his demons could be included in this "all things," according to this interpretation of the verse. So, for now, let me ask: **did the prominent advocates of apocatastasis in the early church believe that the devil and his demons would ultimately be restored or reconciled to God?** Since "prominent advocates" may not be sufficiently specific, let's limit ourselves to the views of Clement of Alexandria, Origen, Gregory of Nazianzus, and Gregory of Nyssa. If modern scholars have analyzed their writings in order to answer this question, that analysis, in conjunction with quotes from the writings of these fathers, would be great.