“I'm sorry, father... but hear what I have to say! How do you ever expect the citizens of Thracia to be content thriving off the blood and sweat of other nations? ...Your ways leave much to be desired, father.”
—Altena in Genealogy of the Holy War.
Altena was kidnapped at the age of three, right after Travant murdered her parents. She is then raised by him into a full-fledged Dragon Knight with the ability to wield the legendary Gáe Bolg. When Altena later learns the truth behind her foster father's intentions of raising her, she attempts to kill him, but is knocked out by Travant's son Areone. After Travant's death, she defects to Seliph's liberation army with Areone's help and aids in the capture of Thracia. During the final battle against Granvalle and Julius, Altena convinces Areone to defect from Granvalle's services and fight for the Liberation Army. After the war, she aids Leif in Thracia's reconstruction.
Altena appears briefly in Fire Emblem: Thracia 776, first appearing alongside Travant. Later, during the defense of Tahra, Altena visited Dean and gave him Areone's Dragon Lance. She then appears in Chapter 23 as an enemy unit.
Notes: Parent characters are assumed to be at Level 30 by the end of the First Generation. Unlike most female children, Altena inherits the equipment of her father, Quan, instead of her mother.
Altena is the only playable Dragon Knight in the game, and will eventually promote into a Dragon Master. Unlike Ferry or Fee, she is not a particularly speedy unit, but she is more powerful physically.
In Chapter 9, if Leif speaks to Altena, Altena will leave the battlefield, and can be recruited later on.
In Chapter 9, after Travant is defeated, Seliph may recruit Altena by speaking to her.
In Chapter 9, after Grutia Castle is captured, either Finn or Hannibal may speak to Altena, and she will gain three points of HP. Note that if one of them has initiated his respective conversation with her, the other will not be able to speak to her.
In Chapter 10, if Leif speaks to Altena, she will gain one point of Luck.
In Chapter 10, after Miletos Castle is captured, Corpul may speak to Altena, whereupon she will gain five points of Resistance.
In the Final Chapter, after Freege is captured and Areone makes his appearance, Altena may speak to him to turn him and his group into allied NPCs.
Much like Teeny, Altena will be recruited into Seliph's army even if she does not talk to him during her retreat from Thracia. She will be listed as an enemy NPC however, and cannot be controlled outside of your home castle.