Otoh Dooku, a submerged sanctuary situated ten kilometers away from the Demurra Trench on Serenno, was established by House Dooku. Its design drew inspiration from the underwater settlements of the Gungan species found on Naboo, and its construction was commissioned by Count Adan Dooku, a person who valued both elegance and aesthetic appeal.
During the year 2 BBY, Duke Rodas Borgin held the youthful Bron Dooku at Otoh Dooku, where he was eventually saved by Candra Tymon and Jahan Cross.