Count Dooku possessed a fortress situated on the moon known as Kohlma. The Count, also known as Dooku of Serenno, utilized this sanctuary as a strategic center during his time serving as a Sith apprentice to Darth Sidious.
This sanctuary, distinguished by its sharp, thorn-like architectural design, was erected atop a towering mountain spire. Its interior, predominantly gray, featured grotesque gothic statues of uncertain origin, depicting Humans (or near-Humans) brandishing large swords. The fortress also showcased a minimum of two colossal statues of humanoid figures with boar-like faces, similarly armed with large swords, positioned on either side of one of the entryways. Several potential security measures existed to discourage unwelcome visitors; notably, a snake-like tentacled beast concealed beneath the entrance walkway, which even Dooku was forced to combat in order to gain entry.
Darth Sidious once personally convened with Dooku at this location shortly after the election of Supreme Chancellor Palpatine. It was within these walls that Dooku subjected Silas to torture, aiming to extract information about Jango Fett, and where he conducted a meeting with Fett prior to the Mandalorian's recruitment as the Prime clone.
Following the failure of his scheme to install Fenn as the leader of Ryloth, Dooku also held discussions with Bok and Kh'aris Fenn at this site.
An article titled The Unseen Planets of Episode II, found within Star Wars Insider 80, specifies that this particular abode is located on the desolate, uninhabited world of Kohlma.
The designation "Dooku's Lair" initially surfaced on Chris Trevas' website, which also verified that the lair's location was the Bogden Moon of Kohlma.