A Masque of History
This subtitle appears only on the title page, and it's already a pun. A "masque" is a false face, but an older sense is a play. Plays and theater are a constant theme in TDW.
Copyright © 1983 by John M. Ford
1983 was the five hundredth anniversary of the coronation of Richard III of England.
Not "a historical note," but an ahistorical one -- that is, non-historical. (For the "historical notes," see p378.)
The note particularly emphasizes Richard III, both as the king and the play by Shakespeare.
Loukianos, who was also known as Lucian the Scoffer, then produced a fantasy story called the True History.
As Nennius wrote twelve centuries ago, if there was such a person and that was when he wrote, "I yield to him who knows more of these things than I do."
The Historia Brittonum, a collection of texts from about the 8th century, is attributed to someone named Nennius -- at least, one version is.