Dragon Knights

The Dragon Knights are a fresh chapter spawned from the Medieval Death World of Shernauch I.

Origins
Shernauch I was settled by the Imperium long ago and evolved into a functional Medieval world despite the incredibly hostile flora and fauna. Various barbarian clans began to establish themselves with sweeping farm lands surrounding central castles. The common men and women of Shernauch I were illiterate serfs under the rule of their feudal lords, however the nobels themselves were aware of the orbital platform on which the governor lived, and were granted limited access to Imperial technology to consolidate their rule.

While the planet was firmly in the technological dark ages, most would  believe the world was of no interest to the Adeptus Mechanicus, and that was the desired idea. The king of Ayrshire at the time was offered power and wealth in exchange for letting his castle act as storage for the Imperium's assets. The hope was that the locals were too ignorant to understand whatt they were guarding, and that they would be easy to put down if they chose to turn on the Imperium with the valued assets in their custody. For several hundred years, the Ayrshire clan unwittingly guarded over an emergency stock of Blood Angel gene seed.

At the turn of the millenium, the Great Rift appeared and consumed Shernauch I. This doom was forseen by court witches and wizards, however the vassals were no match for the thirsting daemons that descended onto their world. With no other options for escape, the governor met with the current King Ayrshire and explained what his clan had been guarding for generations. In a time of crisis, the kings of the various realms sent  their greatest knights to Ayrshire for an attempt at conversion, though the means of surgery and age of the subjects resulted in most subjects dying on the operating table. Those few who survived only had access to the governor's suits of heavy exo-armor and a few chain weapons.

With little time to prepare or train, many of these new knights were slain in battle, however some survived long enough for a miracle. The governor brought down his travel wizard and joined  her with a large gathering of court witches and wizards, their faith in the Emperor being their only hope for escape while the knights struggled to preserve what they could. In a flash, the wizards moved the planet from the rift at the cost of most of their lives. It was then that the Adeptus Mechanicus and Blood Angels appeared to save the castle marked as their gene-storage.

In the coming months, King Ayrshire himself was enhanced under proper conditions, though extra measures were taken to ensure he could survive the procedure. Proper apothicaries have helped the king and his clan steady themselves so the Blood Angels could gain new allies in a time of crisis. While exo-armor was the main armor for the chapter, true terminator suits have been granted to them for the scouring of daemons from Shernauch I. So few actual Dragon Knights are active, that their status is largely uncertain, however King Ayrshire retains his rule and people as his own.

The Dragon Knights chapter was not a planned creation, nor is its place in the Imperium fully settled, however the Blood Angels have taken their illegitimate children under their wing. Whether the administratum recognizes and registers them as an official chapter or simply folds them into the Blood Angels is as of yet unknown.