Chris Cwej refered to the home planet of his employers as "the Homeworld".
One account implied this was the primary Homeworld by suggesting that "some of the time travellers didn't invade the bottle, they'd been talking of setting up other colonies in the "real" universe. (PROSE: Dead Romance) However, a later account indicated that only one House had invaded the bottle. (AUDIO: The Eleven Day Empire)
Either way, by the time Christine Summerfield arrived at the the capitol city of the homeworld, it appeared to be in ruins. (PROSE: Dead Romance)
Behind the scenes[]
This Homeworld was a ruined Gallifrey within the Virgin reality. Other ruined Gallifreys in the Virgin reality included Ardethe and New Alexandria.