Dodo Taylor
From Tardis Wiki, the free Doctor Who reference
Dodo Taylor was the youngest and favourite of the three daughters of Steven Taylor, human king of the planet inhabited by the Elders and Savages. She was named after Dodo Chaplet, a friend of her father who travelled with him as a companion of the First Doctor.
Dodo was murdered by assassins, which devastated Steven. (AUDIO: The War To End All Wars)