The Pendragon Campaign
Published: 1984 by Chaosium
Author: Greg Stafford
From the author's website:
Gamemaster notes, notes on the setting of Britain, a magic system intended for the Gamemaster's use, Chronologies and notes for many main characters, a brief synopsis of the overall story arc ten pages of scenarios, three pages of annotated Bibliography, many coats of arms.
Genres: Fantasy (Arthurian)
Types: Sourcebook
Games: Pendragon (1st - 6th Editions)
Settings: Arthurian Legends