Editing Nobledark Imperium Notes (section)

==the Realm of Ultramar and the Imperium Secundus Plan==

Roboute Guilliman just loved his contingency plans. No matter what happened he had a plan for how to beat it. It was how his forces reacted so quickly and coherently when The Beast smashed into Imperial Space. They just adapted one of his older plans slightly. He was anticipating the discovery of some great and hostile empire, possibly human possibly xeno, out on the Eastern Fringe. Sort of an "Evil Twin. Wat Do?" type deal. The Ultramarine WotB plans were mostly just adapted from that.

Guilliman’s plan for the absolute worst case scenario, one where the “evil empire” made it all the way to Segmentum Solar and Old Earth fell, was to rally all the assets that could be salvaged and rebuild the Imperium somewhere else. Guilliman made no secret about his plan B (as well as the fact that it was supposed to be just that, a plan B), as it was only sensible to prepare for the worst. For this plan, Guilliman chose the Survivor Civilization of Ultramar. Ultramar was about as far away from the Imperium as you could get and still be in what one could call civilization. Ultramar was also very well-organized, so his plan was mostly based around the older empire of Ultramar and using that as a keystone for other systems to rally around. If the hypothetical evil empire arose anywhere else and smashed into Segmentum Solar and Old Earth, Ultramar would be the best place to be clear of the blast radius. In any case the Imperium Secundus groundwork needed someone to oversee it. Lord Guilliman’s grandson, Gaufrid Guilliman, was a very competent and respected member of the Administratum who was tasked with overseeing this great and hopefully never to be used Plan B. 

When Guilliman first came to Ultramar, Ultramar was organized in a manner similar to the Delian League of ancient Earth. On paper, Ultramar was supposed to be an association of equals, but in practice it was a hegemonic empire with Macragge, being the most populous and militarily powerful, calling the shots. Guilliman made numerous reforms to Ultramar’s government and bureaucracy, among other things turning it into a “one planet, one vote” system. Macragge went along with it because at the time Macragge afraid of being upstaged by Calth, who threatened to surpass Macragge in terms of population and therefore threatened Macragge’s power in Ultramar. Ironically, Guilliman preserved Macragge’s voice in the system at the expense of ending Macraggian hegemony. Macragge and Calth still tend to butt heads politically, being the two largest and most prosperous worlds in Ultramar, but the system is far smoother and more efficient than it once was.

Guilliman's plan proved surprisingly prescient. When the War of the Beast broke out, Ultramar's remote location meant it was spared the worst of the fighting. Ultramar saw conflict, as did all regions of the Imperium but it did not see the fierce fighting that wracked Segmenta Solar and Obscurus. Gaufrid Guilliman was the only descendant of Yolande Fouché and Roboute Guilliman to survive the War of the Beast, thanks to Guilliman’s contingency plan. The line of Guilliman and House Guilliman failed on Old Earth. None of his descendants were counted among the living at the end of the war. There are still people in the realm of Ultramar with the name Guilliman. They are almost certainly descendants now very far removed.