Mogh, son of Worf

Mogh, son of Worf.

First Officer (under Captain K'Empec), then Captain of the IKS Pu'Bekh.

Married to Kassin, had two sons, Worf (named for his grandfather), and Kurn.

Killed, along with his wife, at Khitomer in 2346.

Source:
 * Star Trek The Lost Era Novel: The Art of the Impossible.