@WhiteSpider, I remembered something very important, namely that with a more unified Frankia (or perhaps better said, with fewer civil wars) we could see some more resources end up supporting the monastic system ( which in turn leads to a possible impulse for the transcription of ancient manuscripts or the first codes of Roman law ( such as the Theodosian one ), after all, a good part of the classical works that have survived to us in part or not entirely, in this period could still be found and perhaps copied ) finally with a Rome East that is more ""stable"" and wants to use some of its limited resources for Italy, this may lead to the retention of knowledge of Greek in the region for a bit longer than Otl ( probably in places like Ravenna, the Catepanate and obviously Rome, this too would have interesting effects on the culture of this world, given that some Pope might in the future want to continue the translation project started by Boeotius of Greek works into Latin, allowing for better conservation of authors in Otl who were little known in the Middle Ages, just because there were no pairs of their works translated into Latin ) this could lead to a sort of small Merovingian Renaissance ( very similar to the Carolingian OTL, but still limited in scope, given the difference in territories and the still existing internal political instability ( damn Salic law ) , even if nothing prevents there being a second wave in the future, much more massive 😜 )
I'm talking about authors like Quintus Ennius (to whom Virgil was much preferred in the Middle Ages) or works like the Naturalis Historia of Pliny the Elder, the Deipnosophistai of Athenaeum of Naucratis, the Saturnalia of Macrobius or the Library of Photius ( which are arrived in little pieces, which were used as quotations in other texts ) or directly the many minor writings of Caesar ( of which we only have small fragments ), Augustus ( with his Letters ( where only fragments have reached us ) and the De Vita Sua ( about which we know nothing ), Silla ( in particular his Memoirs, cited by Plutarch ), Cato the censor, Claudius ( among which we include his historical essays on the Etruscans, Carthage and a chronicle of Augustus, as well as a Defense of Cicero against Asinius Gallus and a text on how to play dice ) , Aristotle, Strabo, Suetonius, Pliny the Elder ( among which are included works such as the History of the Wars in Germany ( of which some fragments remain in the Annales and Tacitus's Germania ) a treatise on rhetoric, Historia de suis temporibus ( 31 books, only mentioned by Tacitus in his works ) and the De iaculatione equestri ( a military manual on horse riding ), Livy, the majority of the Greek classics ( the entire epic cycle that surrounds the Homeric works, the History of Constantine the Great written by Praxagoras, the Alexandrian school, the theatrical and tragedy works, etc ) now I honestly don't know exactly when these works were definitively lost, but I can easily imagine that it is not impossible that in this universe, some of them are "saved", without of course forgetting works such as the chronicles of Ammianus Marcellinus or seeing the first royal patronage of writers / chroniclers of the time ( perhaps a praise to the reign of Clovis II ? ) and the inevitable lives of the saints and Popes or liturgical texts ( speaking of religion, technically in 680 there was the 3rd Council of Constantinople, how likely is it that this time Frankish prelates also participated in addition to the Otl papal delegation ?, considering the good relations that are forming between Byzantium and the Merovingians, furthermore having their own representation would be a sign of the new internationally prestige that the kingdom is conquering )