The Penguin book of Greek Verse edited by Constantine Athanasius Trypanis and published in 1971 is an anthology of Greek verse from Homer up to recent times showing that there is an unbroken tradition in Greek poetry (although there are some fairly bare patches especially under Turkish rule). The following poem taken from the book was written by John Mavropous circa 1050.
εἴπερ τινός βούλοιο τῶν ἀλλοτρίων
τῆς σῆς ἀπειλῆς ἐξελέσθαι, Χριστέ μου,
Πλάτωνα καί Πλούταρχον ἐξέλοιό μοι,
ἄμφω γάρ εἰσι καί λόγον καί τόν τρόπον
τοῖς σοῖς νόμοις ἔγγιστα προσπεφυκότες,
εἰ δ’ ἠγνόησαν ὡς Θεός εἶ τῶν ὅλων,
ἐνταῦθα τῆς σῆς χρηστότητος δεῖ μόνον
δι’ ἥν ἅπαντας δωρεάν σῲζειν θέλεις.
If you are willing to spare some of the others [those who were not Christians] from your punishment, my Christ, may you choose Plato and Plutarch, for my sake. For both of them clung very closely to your laws in word and deed. If they did not know you as Lord of all, only your charity is needed here, through which you are willing to save all men and ask for nothing in return.