Vanessa (Logopolis)

Vanessa was the aunt of Tegan Jovanka.

Biography
Vanessa was driving Tegan to Heathrow Airport on 28 February 1981 when the car had a flat tyre. While Tegan went for help, Vanessa was killed by the Master with his Tissue Compression Eliminator. (DW: Logopolis).

The presence of a photograph of her "Auntie" Vanessa in her cabin on Striker's yacht alerted Tegan that her hosts had been reading her mind and using that information to make her cabin more homey and comfortable, a clue to their true nature as Eternals. (DW: Enlightenment)

Vanessa once told Tegan to stop being a stewardess hen it stopped being fun. Tegan applied this notion, citing it when she departed the Doctor after her encounter with the Daleks in London in 1984. (DW: Resurrection of the Daleks)

It is unclear if Vanessa was the sister of Tegan's mother or her father.