Parmandur
Book-Friend
How so? (don't have the GoS book)....
OK< some spoilers here...
The sandbox framing section has a driving metaplot all about the Scarlet Brotherhood manuvering to take over the Hold of the Sea Pricnes and Keoland. The former is something that was accomplished in the Greyhawk Wars. All of the geopoliotical details are strictly pre-War.