An antique Klingon D7 battle cruiser whose crew, descended from pilgrims who left the Empire generations before, met Voyager in 2377 while searching for their prophesied saviour.
Kohlar's battle cruiser is an old Klingon D7 that appears in the Voyager episode Prophecy. Its crew are the descendants of a religious sect that left Klingon space more than a century earlier to look for the kuvah'magh, a child foretold to lead them to a new home.
Knowing nothing of the peace with the Federation, they attack Voyager on sight. Their captain, Kohlar, stops when he learns that B'Elanna Torres is carrying a child and decides that the search is over. He destroys his own worn-out ship so that his two hundred followers must be taken aboard Voyager.
The unborn Miral's blood proves able to cure a disease the pilgrims carry, and they finally settle on a nearby planet.