Tarilla was a female Klingon, the mate of M'Raq, and mother of Klag and Dorrek. Tarilla was presumed to be widowed when M'Raq was captured by the Romulans in battle, and denied an honorable death. However, he escaped captivity sometime prior to 2365 and returned to his home on Qo'noS. Tarilla accepted him home despite his dishonor, though M'Raq refused to speak of the matter with her, or to attempt to regain his honor. Klag refused to see his father following his return, a decision with created a deep rift between Tarilla and her eldest son.