Additional Credits are on page #2 (fourth page of the pdf) :
Ironbound Tome's introduction will be credited more obviously in a next version of the pdf…
"Royale" is as from "Heirs to Merlin: the Stonehenge Tribunal" map key…
…but there also is : "Stonehedge" instead of "Stonehenge", so…
Is it not "Royale" as in James Bond's "Casino Royale" ? 
Misspelling will be corrected in a next version of the pdf…