<P> Some sixty years prior to the series, Avatar Aang and Fire Lord Zuko founded the United Republic of Nations, and its capital Republic City . In the following years, Aang married Katara and they have three children: Bumi (named for Aang's old friend), Kya (after Katara's deceased mother), and Tenzin . In his adult years, Aang grew a neatly cropped chinstrap beard, which many statues of Aang's adult form depict him with, including the one in the restored Southern Air Temple . He also founded the Air Acolytes, a sect who eschewed their home cultures in favor of following the Air Nomads' way of life (the comics reveal that the first Air Acolytes were the reorganized Avatar Fan Club). A forty - year - old Aang assisted Toph in arresting Water Tribe crime lord Yakone . As Aang watched the trial where Yakone was convicted of using the rare and illegal technique Bloodbending, Yakone tried to escape Republic City, using his unique abilities to subdue everyone in the court room, thus leaving them unconscious . Able to resist Yakone's Bloodbending through the Avatar State, Aang used his Energybending abilities to put a halt to Yakone's plans . </P> <P> Being frozen in an iceberg for a hundred years while in the Avatar State drained much of Aang's life energy . While he did not feel the effects for many years, after he entered middle age in his 50s, the strain of this exertion increasingly weighed upon his body . Ultimately, it resulted in Aang dying at the relatively young biological age of 66, in 153 AG . Aang was survived by his wife, Katara, and his three children, but he did not live to see his grandchildren, all of whom would be powerful Airbenders . Prior to his death, Aang tasked the Order of the White Lotus with finding and guiding the new Avatar after him . When Aang died, the Avatar spirit reincarnated into the Southern Water Tribe female Korra . Aang intended for the Order to simply guide and guard Korra, but several mishaps in the aftermath of Aang's death (including a kidnapping attempt by the anarchist Zaheer) and the still - fragile state of relations between the now - Five Nations resulted in Katara and Tenzin sequestering Korra in a compound at the South Pole, bringing teachers to her instead of allowing her to seek out her own . </P> <P> In the sequel series' first season, Avatar Aang's spirit occasionally serves as the spiritual advisor to seventeen - year - old Korra (much like the previous Avatar incarnation, Roku, did for Aang). Initially, Aang is only able to give Korra glimpses of his memory concerning Yakone in relation to her confrontations with his two sons, Amon and Tarrlok, the products of Yakone's Bloodbending vendetta on the Avatar . It is only after she loses her ability to bend that Korra allows herself to listen to her past lives, at which point Aang restores her powers by triggering the Avatar State and teaching her to Energybend . </P> <P> The sequel series' second season reveals that Avatar Aang apparently treated Tenzin as his favorite child, due to his son's Airbender status; Kya and Bumi mentioned to Tenzin that Aang always took Tenzin on vacations with him, but never them . Aang's Air Acolytes also were unaware that Aang had two other children besides Tenzin . Aang himself later appears, along with Roku, Kyoshi and Kuruk, before Korra in a vision and encourages her to learn the origins of Wan (the first Avatar) and Raava . Aang, or possibly a vision of him, later appears in the Spirit World, encouraging Tenzin to move past the enormous legacy of being Aang's son and find his own path . Korra's connection to Aang and the other preceding Avatars is severed when Vaatu extracts and subsequently kills Raava, the divine Avatar Spirit entity within her . Even though Raava is reborn and fused again with Korra, she discovers, to her dismay, that her spiritual connection to Aang and all past Avatars is gone forever . </P>

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