Konjah

 was a member of the High Council of the Klingon Empire and the leader of his House. At some point before 2401, he was replaced by an Undine infiltrator. In that year, was attacked by Lethean mercenaries and revealed as an Undine. The members of the House of Konjah, likely including the Undine 'Konjah' himself, are killed or forced to go into hiding.