Hur'q

A fictional species of the Star Trek universe, Hur'q conquered the Klingon homeworld, Qo'noS (Kronos) about 1,000 years prior to the timeline of Star Trek:The Next Generation. Their name is the Klingon word for "outsider" and is probably not their own name for themselves. The Hur'q plundered Qo'noS, stealing the revered Sword of Kahless. They apparently originated in the Gamma Quadrant, and may have travelled through the Bajoran Wormhole to reach this part of the galaxy.