Owyn Lyons Elder Owyn Lyons is the leader of the East Coast Brotherhood of Steel in 2277 . As of 2287 , he is deceased . Background . Beginnings . Lyons was born in 2202 , and was originally a Brotherhood of Steel paladin stationed at the Lost Hills bunker in South California . In 2251 , his daughter Sarah was born . Sarah ' s mother died some time afterwards . In 2254 the Brotherhood ' s ruling council decided to send a contingent of soldiers to the East Coast , with three important objectives . First , to scour the ruins of Washington , D . C . , once the nation ' s capital , and recover any and all advanced technology . Second , to investigate the reports of super mutant activity in the area . Third , to reestablish contact with the Midwestern chapter of the Brotherhood of Steel and return them under Lost Hills command ( the Brotherhood of Steel ' s main airship had crashed near Chicago during a large storm and all communication was lost with the Lost Hills bunker ) . Thus a small but hardened contingent of Brotherhood of Steel soldiers , led by Paladin Lyons ( and accompanied by his three year - old daughter Sarah , friend and technological adviser Scribe Rothchild , as well as Star Paladin Cross , Paladin Henry Casdin , Paladin Ishmael Ashur , Knight Commander Tristan , Junior Knight Colvin and Junior Paladin Gunny ) set out from Lost Hills and began the long trek east to what was once Washington D . C . Going east . Contact with the Midwestern Brotherhood turned out to be unsuccessful . The group passed the Pitt on the way to the Capital Wasteland and " cleansed " the area of its mutated population , an action later to be known as the Scourge . When the group reached the East Coast , they found the Pentagon largely destroyed but still holding a technological marvel in the form of Liberty Prime . This discovery was significant enough to earn Paladin Lyons a battlefield promotion to elder , and a new directive from his superiors ; to establish a new , permanent Brotherhood base in the Capital Wasteland and continue the search for any other advanced technology hidden in the capital ' s ruins . Lyons accepted his new post gladly and founded the Citadel , built into and beneath the ruins of the Pentagon . Lyons and his soldiers also found the super mutant s in the urban ruins of Washington , D . C . and helped stop the mutant tide from overtaking the entire region , by at least keeping them at bay . Fighting the super mutants , simply keeping them at bay , may have been enough for the area ' s wastelander s , but for the Brotherhood , too many questions remained ; foremost among them , the means by which these new mutants were being created , where they were being created and why they were using the people of the Capital Wasteland . Finding these answers would , ultimately , become Owyn Lyons ' obsession . At some point during the mid 2250 ' s a group of scientists led by James , founded Project Purity , a scientific research project aimed at creating free clean water for the people of the Capital Wasteland , at the Jefferson Memorial . With their site ' s location being in close proximity to the Citadel , they brokered an alliance with Lyons for protection and supplies . Knowing what such an endeavor could mean to the Brotherhood and the people of the wasteland , Lyons supported the science team with whatever they needed and kept raiders and super mutants at bay until the project was eventually abandoned by the scientists . A new mission . The years passed , but not in a way anyone had foreseen . Indeed , the Brotherhood of Steel ’ s importance to the people of the Capital Wasteland was not something that Lyons ever expected . Nor was it something his superiors back in California cared at all about . Their newest elder had a clearly defined mission : to acquire advanced technologies in and around the ruins of Washington D . C . Finding the source of the super mutant threat and destroying it was important too , of course . Lyons ’ prime objective was , first and foremost , the acquisition of technology . The super mutants were his second priority . Thus was the subject of every communication from the Brotherhood of Steel leadership in California . However , Elder Owyn Lyons had another priority , one he considered more important than his original directive or any orders received since : the protection of the innocent people of the Capital Wasteland . And so , Lyons sent word to his superiors that he would continue his search for technology when he was damned good and ready , and would not sacrifice the people who had come to rely on the bravery and strength of the Brotherhood of Steel . The Californian corridors of Lost Hills erupted in rumor and speculation . Some claimed Owyn Lyons had " gone native , " putting the needs of the people of D . C . above those of the Brotherhood itself ; others saw him as a Brotherhood elder finally exhibiting the selfless behavior that should serve as a model for the entire order . Caught in the middle , the ruling elders made the only decision they could : they would still recognize Elder Lyons as a leader of the Brotherhood of Steel and the Citadel as their D . C . headquarters , but all support from the West Coast was thereby cut off . If Lyons wanted to pursue his own agenda on the East Coast , he would have to do it alone . Outcasts . Most of Elder Lyons ’ soldiers supported his dedication to the people of the Capital Wasteland , and were proud of their leader ’ s commitment to honor and heroism . But there were those who voiced their opposition – loudly , and aggressively . They believed that by abandoning the Brotherhood of Steel ’ s primary mission of acquiring new technologies , Elder Lyons had abandoned the very values that defined the order itself . One night , the dissenters departed from the Citadel , absconding with weapons , power armor , and other pieces of technology and equipment . This was , without question , Owyn Lyons ’ darkest hour . He had become a man of compassion and understanding , and couldn ’ t help but sympathize with those who had left ; he had abandoned the Brotherhood ’ s primary mission . He recognized that , and took full responsibility for it . Some of the knights and paladins who left had been his brothers for years . Together , they had shared victory and loss , pain and elation . But to those soldiers loyal to Elder Lyons , this dereliction of duty and theft of technology was an act of cowardice and treason . The dissenters would call themselves the " Outcasts , " traitors to the Brotherhood of Steel – it was a name they would ultimately wear like a badge of honor , proud of the distance it put between themselves and Lyons ’ " soldier sycophants . " One of these people who left was none other than Henry Casdin , who became the founder of the Outcasts . War with the Enclave . A year passed since many of his soldiers left to form the Brotherhood Outcasts , but Lyons was still dedicated to the cause of helping the people of the Capital Wasteland . He continued to send his troops into the D . C . ruins to help any who needed it , including the protection of Three Dog , a disk jockey who tries to get the message of the " good fight " to the people of the wasteland . All continued normally , until the Enclave attacked and occupied the Jefferson Memorial , where Project Purity called home . James , the leader of the project , sacrificed his life in an attempt to thwart Augustus Autumn ' s attempt to take over the project . While he failed to stop the Enclave , he managed to save the lives of scientist Madison Li and his child , the Lone Wanderer . The two eventually made it to the Citadel , where Lyons greeted them . After hearing of the resurgence of the Enclave , he immediately declared war on the Enclave and began a campaign to stop them . The Lone Wanderer required a Garden of Eden Creation Kit to get Project Purity functional and Lyons pointed them in the direction of Reginald Rothchild , after speaking to Rothchild , the Wanderer headed to Vault 87 for the G . E . C . K . Shortly before the Wanderer ' s return , Owyn Lyons was debating with his daughter whether or not to launch an assault on the Jefferson Memorial , and reclaim it from the Enclave . The Lone Wanderer returned to tell Lyons some ill news , that the Enclave had stolen the G . E . C . K . and would shortly activate it . With this piece of information and his daughter ' s eagerness to attack , he ordered them to assault the project and occupy it . After the battle was won , the Brotherhood occupied the Jefferson Memorial , and began to distribute clean , fresh water to the people of the Capital Wasteland . Lyons once again enlisted the help of the Lone Wanderer to help defeat the Enclave , sending them to assist with the assault of the Satellite Relay Station and also tasked the Wanderer with finding a Tesla Coil in the ruins of Old Olney . After the Wanderer had completed these tasks they were sent to Adams Air Force Base to destroy the Enclave ' s last known major base of operations . Fate . The Lone Wanderer could have targeted either Adams Air Force Base or the Citadel , the latter of which would have killed Lyons . However , the appearance of Arthur Maxson and several comments made by soldiers on the Prydwen point to the survival of the DC chapter . News of the civil war between the Brotherhood of Steel and Outcasts had also reached other Brotherhood chapters , such as the Mojave Chapter . By 2287 , Lyons had passed away and his daughter assumed the position as elder , but that was short lived since she soon perished in battle . After a number of other elders had come and gone , Arthur Maxson assumed the mantle as the newest elder of the East Coast chapter . Under his leadership , the Brotherhood has largely abandoned the nation - building and civilian protection role it had assumed under Owyn Lyons ' more idealistic leadership , and reverted all of his resources to fighting the Institute and eliminating the synth s as much as he would want to help the people of the Commonwealth . Relationships . His daughter , Sarah Lyons , is a member of the Brotherhood with the unique rank of Sentinel . Reginald Rothchild is an old friend of Elder Lyons . Daily schedule . As the leader of the Brotherhood of Steel , Lyons spends most of his day in the Citadel laboratory , A - Ring or B - Ring . He regularly converses with Scribe Rothchild , Bowditch and Peabody on their various projects . In addition , he checks up on the progress on the Brotherhood ' s major project , rebuilding Liberty Prime , and supervises the armory as well as the smithy . When he is not working in the Citadel lab , he is usually eating in the A ring ' s great hall , studying in his room in B - Ring or sleeping . Appearances . Owyn Lyons appears in " Fallout 3 " and its add - on " Broken Steel " . He also appears as a corpse in a hallucination during " Point Lookout " . Owyn is also mentioned as being deceased in " Fallout 4 " .