Sirella, daughter of Linkasa

Sirella was a female Klingon who lived in the 24th century. She was the wife of Martok, Son of Urthog, and mother to a son named Drex and daughters named Shen and Lazhna.

Of noble descent Sirella maintained that she was a direct descendant of Emperor Reclaw and his daughter Shenara. However Jadzia Dax later discovered evidence that during the fall of the Second Dynasty that a former concubine named Karana was Sirella's ancestor, and was one of the women installed into the Imperial family when the members of the original family were killed. (DS9 episode You Are Cordially Invited)

After Martok had become an officer in the Klingon Defense Force, he and Sirella were married. While Sirella's belongings were being moved into Martok's home, she left the door open, allowing Martok's targ to escape into the nearby countryside. Martok grew to love Sirella very much, even though he saw her as an arrogant and prideful woman who didn't share his bed nearly enough. (DS9 episodes You Are Cordially Invited and Strange Bedfellows)

When Worf was invited into the House of Martok, he was in a romantic relationship with Jadzia Dax. After the two decided to marry, it fell to Sirella to judge the worthiness of Jadzia Dax to join the House of Martok as Worf's wife. Shortly after the Federation and its allies retook Deep Space Nine from the Dominion in 2374, the marriage plans proceeded in earnest. Sirella traveled to Deep Space Nine to judge Jadzia Dax. Sirella was initially opposed to the wedding because she believed that allowing aliens to join the House would threaten its identity, and because she perceived Dax to be vain. Their differences led to an angry clash in Dax's quarters, with Sirella calling Dax a "Risan slut" and canceling the wedding. Worf himself began to have doubts about the marriage when Dax suggested not having a Klingon ceremony, and instead having Captain Benjamin Sisko marry them. Sisko was able to convince Dax to go back and beg forgiveness from Sirella, who then allowed the wedding to proceed. Sirella herself officiated at the wedding ceremony, and welcomed Dax into the House of Martok. (DS9 episode You Are Cordially Invited).

In 2375, Sirella had several cases of bloodwine shipped to Deep Space Nine. Trying to get spare parts, Nog had received access codes from Chief Miles O'Brien which allowed him to trade the bloodwine away in exchange for something else. Worf and Martok angrily confronted Chief O'Brien about the missing bloodwine, however the two were later pleased to discover that cases of 2309 bloodwine had arrived in place of the bloodwine Sirella had sent. Offering a bottle of it to Chief O'Brien in apology, Martok remarked it was a better vintage than that his wife had sent him. (DS9 episode Treachery, Faith and the Great River)

Shortly after her husband had become Chancellor of the Klingon High Council, Gothmara and her son Morjod launched a coup d'état against Martok, and managed to briefly depose him. During the initial assault against the House of Martok Sirella was killed, along with her daughters Shen and Lazhna. (DS9 novel The Left Hand of Destiny)