Trakkiney

From Tardis Wiki, the free Doctor Who reference

Trakkiney was one of Gallifrey's first colony planets, which the Gallifreyans colonised around the same time that Rassilon installed the transduction barriers on Gallifrey. It was used as a base by the Time Lords during the Racnoss Wars.

During the war the Racnoss attacked a Fledgling Empire outpost on the planet. (PROSE: The Labyrinthine Web)