Book of Sires is widely considered one of the most useful supplements for the King Arthur Pendragon (KAP) roleplaying game, especially for campaigns starting in the Early Phase (c. 485 AD). Why it is "Useful"
Detailed Family History: It significantly expands the family history system from the core rulebook. Instead of just being from Salisbury, player knights can hail from nine different realms, including Aquitaine, Cornwall, and Cumbria.
Deep Background: It provides a year-by-year history starting as early as 439 AD, allowing players to roll for their father's and grandfather's deeds. This generates Passions and Directed Traits inherited by the current character based on historical events like the rise of Vortigern or the arrival of the Saxons.
World-Building: For Game Masters, it offers a "ready-made set of choices" and political intrigue that can echo down into the current campaign era. Availability and Format
The book was originally released for the 5.2 Edition but remains largely compatible with the newer 6th Edition.
Official PDF: You can find the digital version at Chaosium Inc. or DriveThruRPG for approximately $14.99–$19.99. pendragon book of sires pdf
Physical Versions: Hardcover options (standard or premium color) are also available, often bundled with the PDF. Is it right for your game?
The consensus among the community at BRP Central and Reddit is:
Essential if you want your players to have a deep connection to the history before Uther Pendragon.
Optional if you are running a standard campaign where all knights start in Salisbury and you want to jump straight into the Great Pendragon Campaign. Book of Sires - PDF - Chaosium Inc.
The Book of Sires by Chaosium Inc. is a comprehensive supplement for the King Arthur Pendragon RPG, enabling players to generate deep, multi-generational family histories and character lineages starting from 439 AD. It expands the game's scope beyond Salisbury to cover diverse European cultures and acts as a prequel to the Great Pendragon Campaign by focusing on the Anarchy Period. For more details, visit Chaosium Inc.. Book of Sires - PDF - Chaosium Inc. Book of Sires is widely considered one of
A heated debate persists in Pendragon forums: is downloading a fan-scanned PDF acceptable if the book is out of print and no legal PDF exists?
As of 2025, no legal PDF of the complete Book of Sires exists on major platforms like DriveThruRPG or Chaosium’s own store. However, partial content has been repurposed in later books, and a strong fan preservation effort exists.
Use the Ancestral Event Matrix on page 42 of KAP 5.2. Roll for each decade: Battle, Glory, Marriage, Birth, Death, or Event.
The Book of Sires uses a “lifepath” system (preceding Cyberpunk’s lifepaths by years). Players roll on:
A key design insight: the PDF does not let players optimize. You can’t choose all glorious ancestors. Instead, it produces unexpected combinations: a great-grandfather who was a saintly hermit, a grandfather who was a merciless plunderer, and a father who died fleeing battle. The player knight must reconcile these. The Ethics of “Preservation” PDFs A heated debate
This is genealogical bricolage – the same term Lévi-Strauss used for myth-making. The Book of Sires treats family history as a pile of broken symbols the player reassembles into a coherent identity.
A deep reading of any Pendragon Book of Sires PDF – whether the official Chaosium release or a fan compilation – reveals a melancholy truth at the heart of Arthurian roleplaying: no knight is solely his own. Glory is borrowed from the dead, and shame is likewise inherited. The player knight’s quest for the Grail is also an attempt to redeem or escape the chain of ancestors.
Unlike modern individualist RPGs (e.g., Dungeons & Dragons 5e’s “background” system), The Book of Sires forces you to carry your lineage like a suit of armor – beautiful, heavy, and dented by past battles. In that sense, the PDF is not a mere character generator. It is a meditation on fate, memory, and the impossible dream of being the first good person in your family line.
I understand you're looking for a guide related to the Pendragon Book of Sires PDF. However, I can’t provide direct links to or copies of copyrighted PDFs. What I can offer is a useful guide on how to find legitimate copies, how to use the book effectively, and where to get community support.
Chaosium’s Lordly Domains supplement (available as PDF, $14.95) includes a “Lineage History” section very similar to the Book of Sires. It focuses on manorial management but offers 20+ family events. This is your best legal substitute.