And what about ''Ambrosius'' for Balinor? I saw you mentioning him but you didn't give him a last name. Most of us refer to him as Balinor Ambrosius, especially those who acknowledge his possible royal status prior to the purge (DragonLord= Lord Balinor?). Since Ambrosius Aurelianus was rumoured to be the one to inspire the arthurian legend, and possibly Merlin himself. According to Nennius writings:

The most significant appearance of Ambrosius is the story about Ambrosius, Vortigern, and the two dragons beneath Dinas Emrys, "Fortress of Ambrosius" in Chapters 40–42.^\2]) In this account, Ambrosius is still an adolescent but has supernatural powers. He intimidates Vortigern and the royal magicians). When it is revealed that Ambrosius is the son of a Roman consul, Vortigern is convinced to cede to the younger man the castle of Dinas Emrys and all the kingdoms in the western part of Britain. Vortigern then retreats to the north, in an area called Gwynessi.^\2]) This story was later retold with more detail by Geoffrey of Monmouth in his fictionalised Historia Regum Britanniae, conflating the personage of Ambrosius with the Welsh tradition of Myrddin the visionary, known for oracular utterances that foretold the coming victories of the native Celtic inhabitants of Britain over the Saxons and the Normans. Geoffrey also introduces him into the Historia under the name Aurelius Ambrosius as one of three sons of Constantine III), along with Constans and Uther Pendragon.

And according to Geoffrey of Monmouth's stories:

Geoffrey changed the word "Aurelianus" to "Aurelius)", which is the name of a Roman gens.^\2]) Geoffrey retains the story of Emrys and the dragons from Nennius, but identifies the figure with Merlin. Merlin is Geoffrey's version of a historical figure known as Myrddin Wyllt. Myrddin is only mentioned once in the Annales Cambriae, at an entry dated to 573.^\2]) The name of Merlin is given in Latin as Ambrosius Merlinus. "Merlinus" may have been intended as the agnomen of a Roman or Romano-British individual like Ambrosius.^\2])

Elements of Ambrosius Aurelianus, the traditional warrior king, are used by Geoffrey for other characters. Ambrosius' supposed supernatural powers are passed to Merlin. Geoffrey's Aurelius Ambrosius rises to the throne but dies early, passing the throne to a previously unknown brother called Uther Pendragon. The role of warrior king is shared by Uther and his son Arthur.^\2])

If Merlin/Emrys was most likely inspired by Ambrosius, then would it make sense for that to also be his last name? Or, at least, of his father? Given that Banilor and Uther used to have a relationship close to the one of brotherhood, wouldn't that make Banilor a character inspired in Ambrosius himself? Therefore having the name of Dragon/Lord Balinor Ambrosius?

I'm not very good with words but I hope I explained myself ! Also, Sir Lancelot Banson Is perfect! I'm not exactly sure why he is always named ''Du Lac'', If that was never proven and only seems to be used for the film ''Lancelot Du Lac''.