Navis Nobilite - Navigator Lineage: In the Imperium, there are thousands of Navigator houses, each with a history that can be traced back hundreds if not thousands of Terran years, but still the number of Navigators is a literal drop in the ocean compared to the numberless masses of Humanity.All these houses are not the same either in strength or makeup, and over the millennia many have diverged from the first great families that are said to have exhibited the Navigator Gene at the time of the Great Crusade. Some have dwindled and died off over the years, some few turned outlaw, whilst many others have prospered in divergent ways of life creating branches and offshoots of the Great Houses across the Imperium.Whilst it would be impossible to catalogue and critique each of the Navigator families, many can be grouped into broad categories, representing their unique strain of the Navigator Gene as well as their area of influence and way of life.The four groups which are prevalent throughout the galaxy are known variously as the Magisterial Houses, the Nomadic Houses, the Renegade Houses, and the Shrouded Houses.Magisterial Houses - A Magisterial House is a Navigator dynasty most closely related to one of the original Navigator families dating back to the time of the Unification Wars. These houses are amongst the wealthiest and most traditional of the Navis Nobilite and will possess great holdings within the Navigator's Quarter on Terra. Their influence reaches to the very edges of the light of the Astronomican. The Magisterial Houses maintain traditions, customs and practices that have served them for millennia. They are masters of the traditional Navigator crafts and have more control over the malign mutations that afflict those with the Navigator Gene. To be part of a Magisterial House is to know without question the purity of one's blood and the ancient power and nobility of one's family. Due to the long-established maintenance of their bloodlines, the Navigators of the Magisterial Houses are less susceptible to the symptomatic mutations which often affect Navigators because of their exposure to the power of the Empyrean.Nomadic Houses - A Nomadic Navigator House has forsaken ties of sector and star system, relinquishing their terrestrial holding within the Navigator's Quarter on Terra or other Imperial worlds. Instead, over the centuries, these Navigator Houses have taken wholly to the stars to become wanderers and gypsies, their bloodlines preserved on vast fleets of starships constantly on the move. Due to their void-based lifestyle the members of the Nomadic Houses are perhaps the most skilled of Navigators in the Imperium due to their long exposure to both the void and the Immaterium and the inherent necessities of astronavigation. This gives them an understanding of space and the Warp second to none, but like all of the Voidborn, these Navigators may have a great deal of difficulty relating to the Imperium's varied planetary cultures.Shrouded Houses - A Shrouded House has suffered great losses or shame within the more established dominions of the Imperium. They have opted to move their powerbase completely to the edge of known space, where they cling to the barest strands of their former status and power. Though they may be rich in skill, knowledge or lore, something in the past of Shrouded Houses has blighted them and reduced them to a state so far from their once exalted position that they are sometimes cruelly called "beggar houses" by other, more fortunate (and far less polite) counterparts. A Navigator who is a member of a Shrouded House is part of a fallen bloodline that is slowly rising again to stand defiant against those that once cast them down -- or at least, so they are told by their elders. A Shrouded House's loss in standing has often forced it to flee to the margins of the Imperium and to develop a cunning and opportunistic mindset alongside a skill that is often lacked by more comfortably indolent houses. This tends to make these Navigators far more resourceful than their more well-established kin, while at the same time their Warp Eye often becomes more perceptive.Renegade Houses - A Renegade House represents a Great House that has completely forsaken the traditions and ancient practices of the Navigator families in their quest for power, or it may have been turned on by the rest of the Navis Nobilite, harrowed, and driven into exile. Dabbling heavily in the alteration of the genes of their children in order to improve their lot, the tampering of Renegade Houses often leads to the development of hideous mutations and the existence of unconscionable monsters in their lineage, which in turn leads to rejection by the Paternova and a hunt to extinction by the Inquisition. In some cases, however, a Renegade House's actions have birthed new strains of the Navigator Gene and given rise to families with unique abilities and potent powers. Navigators that are a part of a Renegade House have cast aside the sacred Navigator traditions as small-minded and restrictive and instead have embraced the glory and limitless potential of their ancestry -- or so the houses believe, to comfort themselves. It is whispered that such frontier regions as the Koronus Expanse in the Segmentum Obscurus is home to several Renegade Houses like the secretive Gazmati and the infamous Nostromo.