Kycilia Zabi is the only daughter of Degwin Sodo Zabi. While Yoshiyuki Tomino's novel version of MSG indicates her as the fourth of his five children and youngest except for Garma, the ongoing Gundam: The Origin manga by Yoshikazu Yasuhiko identifies her as his third, older than her brother Dozle.

Kycilia was quick to adapt to the changing technology of the One Year War, and was equally proficient in gathering intelligence for use against the Earth Federation. She was in charge of the Principality of Zeon's mobile suit forces, and was responsible for their use against the Federation. In addition, she was responsible for the creation of numerous elite mobile suit units, including Char Aznable's 300th Independent Corps (aka "Char's Newtype Corps"), the hand-picked Chimera Corps and the Midnight Fenrir covert ops team.

She is portrayed ambiguously during both the main series, and the various side stories surrounding the One Year War, with her motives often open to question. On the one hand, she is shown to be fiercely loyal to the people of Zeon, and to the men under her command. Many of her actions, however, can also be interpreted as those of a charismatic, but utterly merciless manipulator of the highest order, preparing for a military coup.

(Source: Wikipedia)