Lakertya
From Tardis Wiki, the free Doctor Who reference
Lakertya was the homeworld of the Lakertyans. It was conquered by the Rani and her Tetraps from their planet Tetrapyriarbus. The Doctor repelled the Tetraps who turned on the Rani. The Rani built a base of operations in a ravine, she littered the area with traps. (DW: Time and the Rani) Lakertya is in the same solar system as Carsus. (PDA: Spiral Scratch)