Gema IV

From Memory Alpha, the free Star Trek reference.

Gema IV is the fourth planet in the Gema system, that was the site of a Kazon-Nistrim colony during the 2370s.

Tierna told Chakotay that First Maje Jal Culluh had taken his son there to be raised as a servant. According to him, Gema IV was defended by a Nistrim force sufficient to destroy the USS Voyager. (VOY: "Basics, Part I")