Tiger Maratha's wife
From Tardis Wiki, the free Doctor Who reference
The wife of Tiger Maratha and their daughter Priyanka were the primary reason why Tiger stopped travelling with the Fourth Doctor. She was killed in the Rama-16 space disaster. Tiger was devastated and buried himself in the relics of the past. Since his wife's death was space related, he did not approve of Priyanka training to become a pilot for deep space exploration. (COMIC: The Swords of Kali)