Aliona Gadarel
From Tardis Wiki, the free Doctor Who reference
Aliona Gadarel was a princess of the Royal House of Gadarel in the Drashani Empire. To end a civil war, she was pledged to marry Prince Kylo of the rival Royal House of Sorsha. On the way to the wedding, her ship crashed on Sharnax. Kylo mounted an expedition to rescue her.
However, he found out she had agreed to the marriage only to obtain Sorshan DNA. Her people could then use their giant Pulse Gun to wipe out the Sorshans. The plan failed and she was killed. (AUDIO: The Burning Prince)