From Lexicanum

The Feast of blades is a centennial competition of honour between twelve Space Marine Chapters. Each Chapter can choose to send a Champion to represent them to the feast. The 814th Feast happened in the year 949.M41.

Although twelve Space Marine Chapters attend their identities are not all known. However it is speculated that Chapters related to the Imperial Fists take their honour in hand and send a Champion. It is known that the Imperial Fists, Crimson Fists and Iron Knights Chapters of Space Marines all send a Champion to the centennial Feast of Blades.

Never before has one Chapter, let alone one champion, prevailed in two successive assemblages. Until Hervlad Strom won for the Iron Knights in 749.M41 and 849.M41. Strom suffered heavy wounds in the Vinvulus Crusade before the 813th Feast of Blades but still overcame the competition to win this prestigious event.

The 814th Feast of Blades. The ravages of war dictate that only eight of the twelve participating Chapters are in attendance, but the tradition is still observed. Supremacy is tied between the Imperial Fists and Crimson Fists Chapters.*¹

Sources

• ¹:Codex: Space Marines (5th Edition) - a: p49