https://kingarthur.fandom.com/wiki/King_Arthur_Wiki

—Gildas, Chapter 26 of De excidio et conquestu Britanniae (On the Ruin and Conquest of Britain)

We don't have a specific date or exact location for the siege of Mount Badon, roughly in the 5th century, but Gildas writes about the battle within the timeframe of his own life, and thus places a timeframe on the original Arthur.

Gildas also writes about Ambrosius Aurelianus, who he identifies as having Roman heritage. Some scholars believe that this is another name for King Arthur.

Is there any relation to the Mountbatten family from Battenberg in Hesse, Germany? (Unlikely due to distance, though Saxon invaders may have renamed a place location in Britain after a local Batten or Battenberg related name from their homeland.)

Or the location Mount Batten? Likely not, as the previously known How Stert in Plymouth Sound, Devon, England was renamed after Sir William Batten (c.1600-1667), MP and Surveyor of the Navy.

command to change the title of the legend

https://www.youtube.com/watch?v=kkjf0hCKOCE

The sky is a textbook. The sky is a lawbook. The sky is a science book. —Duane Hamacher, (1:24)

Hamacher uses the Western description "method of loci" rather than an Indigenous word or translated word.

The words "myth", "legend", "magic", "ritual", and "religion" in both colloquial English and even anthropology are highly loaded terms.

Words like "narrative" and "story" are better used instead for describing portions of the Indigenous cultures which we have long ignored and written off for their seeming simplicity.

It's an allusion to a Christian legend about seven Christian youths who hid in a cave in hopes of avoiding the persecution of Decius in AD 249 in Ephesus. Eventually, they were caught, tortured and were walled up alive in the cave they once hid. However, miraculously, they did not die, slept for 187 years and were awaken in AD 479, a new world where Christianity became the major religion.

Same imagery with the poem of waking up in a new world.

Source : https://catholicsaints.info/seven-sleepers-of-ephesus/

https://www.theguardian.com/books/2021/sep/06/fragments-of-medieval-merlin-manuscript-found-in-bristol-library-reveal-chaster-story

Even though this version has the names inscribed on a ring, the text still reads that they were "imprinted on her" which still likely uses the less chaste text of other versions.

Which versions came first?

Of Gods and men