Duncan's Murder. Macbeth did not murder Duncan in the castle of Inverness, as stated in the play, but at "the smith's house," near Elgin (1039).
Elsinore. Shakespeare speaks of the beetling cliff of Elsinore, whereas Elsinore has no cliffs at all.
What if it [
the ghost
] tempt you toward the flood.
Or to the dreadful summit of the cliff
That beetles o'er its base into the sea?
Hamlet, act i. sc. 4.
The Ghost, in Hamlet, is evidently a Roman Catholic; he talks of purgatory, absolution, and other Catholic dogmas; but the Danes at the time were pagans.
St. Louis. Shakespeare, in Henry V. act i. sc. 2, calls Louis X. "St. Louis," but "St. Louis" was Louis IX. It was Louis IX. whose "grandmother was Isabel," issue of Charles de Lorraine, the last of the Carlovingians. Louis X. was the son of Philippe IV. (le Bel) and grandson of Philippe III. and "Isabel of Aragon," not Isabel, "heir of Capet of the line of Charles the duke of Lorain."