From Star Trek : Freedom's Wiki
The IKS Hegh’delar is a B'Rel Class starship serving in the fleet of the Klingon Empire.
In 2407, the Hegh'delar aided Captain Devan Sash and other members of the USS Nimitz crew to conduct a rescue operation of a fellow shipmate being held aboard the Djorn Major XJ-003 prison facility.
The ship was badly damaged in a conflict with a Doenitz Loyalist Federation starship the USS Vindicator a Defiant Class vessel. Despite being tactically outmatched the ship performed well and in the end destroyed the Vindicator during the battle.
After the battle, the ship was returned to the Klingon Empire