Ocato Ocato of Firsthold , also known as High Chancellor Ocato and later Potentate Ocato , was an Altmer who served as the Imperial Battlemage of Emperor Uriel Septim VII , and the High Chancellor of the Elder Council . After the Oblivion Crisis , he also served as Potentate of the Empire . He was assassinated in 4E 10 . Biography . Ocato became the Imperial Battlemage to replace the treacherous Jagar Tharn after the latter ' s conspiracy to take over the Empire some time before 3E 405 . After Emperor Uriel ' s assassination in 3E 433 , Ocato became the " de facto " leader of the Empire as the Head of the Elder Council . As Gates to Oblivion started opening around Tamriel and Daedra following Mehrunes Dagon began to invade , it was largely Ocato ' s job to hold the Empire together . Some of Cyrodiil ' s nobility , including Count Regulus Terentius of Bravil believed that Ocato intended to use the Oblivion Crisis to crown himself Emperor and that he did not truly care about Cyrodiil . Ocato reluctantly became Potentate in 4E 0 of the Septim Empire until a new leader could be established . He convened the full Elder Council in an unsuccessful bid to select a new Emperor . Ocato was one of the few people to believe Lathenil of Sunhold . In 4E 10 Ocato was assassinated by the Thalmor , which caused the Elder Council to fracture and the Stormcrown Interregnum , where multiple people tried to claim the Ruby Throne . Interactions . Privateer ' s Hold . In , Ocato stands holding a torch by Uriel Septim while he is instructing the Hero of Daggerfall with an important mission . Allies for Bruma . In , when the Hero of Kvatch is sent by Jauffre , the Grandmaster of the Blades , they approached Ocato to ask for aid for Bruma to protect Emperor Uriel ' s last remaining heir , Martin Septim , Ocato refused . Ocato claimed he wished to help , but that he would have a political crisis on his hands if he would try to move any troops from other provinces to protect his interests in Cyrodiil . Light the Dragonfires . After Mankar Camoran ' s death and the retrieval of the Amulet of Kings , Martin Septim came to the Imperial City to claim his title of Emperor . Ocato had already considered the matter with the Elder Council , and happily accepted Martin as the Emperor . But before they could complete the ceremony to relight the Dragonfires and reestablish the barriers between Nirn and Oblivion , the Imperial City was attacked by Daedra , led by Mehrunes Dagon himself . Ocato helped Martin fight his way to the Temple of the One , but they were too late ; the barriers between the realms were gone . Martin , however , used the divine blood within the Amulet of Kings to transform himself into an Avatar of Akatosh and banish Dagon back to Oblivion . Unfortunately , this caused Martin afterwards to turn into stone , destroying the Septim bloodline . Imperial Dragon Armor . After the battle , Ocato names the Hero of Kvatch the Champion of Cyrodiil and provides them with a full suit of Imperial Dragon Armor however it takes fourteen days to make . Ocato continued to serve as the Potentate of the Empire in the place of a true Emperor , now having to deal with several provinces that threatened to break their ties to the Empire . He continued to lead the Elder Council well after the Oblivion Crisis . Opinions . When the Oblivion Crisis ended , the Counts of Cyrodiil had different things to say about Ocato , regarding his position and his rule .