Annemarie Bourget

A young mobile suit pilot who commands one of the Crossbone Vanguard's reconnaissance teams. Annamarie is devoted to her mentor Zabine Chareux, but she is jealous of the attention he gives to Cecily, and ultimately decides to get even by defecting to the Federation Forces; however, she is killed on her first mission with the Federation Forces.

(Source: Gundam Wikia)