The Klingon house headed by Noggra, an old friend of Mogh, which took in Worf's brother Kurn under the new identity of Rodek after his memory was erased.
The House of Noggra is a Klingon family in good standing with the Empire. Its head, Noggra, had been a friend of Worf's father Mogh and stayed loyal to his sons after Gowron stripped their house of its name and lands.
The house appears at the end of Sons of Mogh. Kurn, disgraced and unable to live without honour, has asked Worf to kill him, and both that ritual and Kurn's attempts to find death in other ways have failed. Worf chooses instead to have Doctor Bashir wipe his brother's memory and alter his appearance.
Noggra comes to Deep Space Nine to collect the patient, who wakes believing he is Rodek, son of Noggra, injured in an accident. Worf lets him go without saying who he is, and says he no longer has any family.