Denali coven

"Behind my human friends were my new cousins-in-law, the Denali vampire clan. I realized I was holding my breath as the vampire in front — Tanya, I assumed from the strawberry tint in her blonde curls — reached out to embrace Edward. Next to her, three other vampires stared at me with open curiosity. One woman had long, pale blonde hair, straight as corn silk. The other woman and the man beside her were both black-haired, with a hint of an olive tone to their chalky complexions."

- Bella upon meeting the Denali coven

The Denali coven is a coven of vegetarian vampires comprising of Kate, Garrett, Carmen, Eleazar, and Tanya.

The Denali coven are one of the two known vegetarian vampire covens in the world, the other being the Cullen family. They are very close to them, being one of the Cullens' most loyal allies, going so far as considering themselves their extended family. The Denali coven is located in Denali, Alaska, which, along with their vegetarian diet, allows its members to live alongside humans without too much trouble.

The coven was originally founded by Sasha, who was responsible for transforming Tanya, Kate and Irina into vampires. They considered Sasha their mother and one another sisters. After Sasha was executed by the Volturi for creating an immortal child, Vasilii, Tanya assumed leadership of the coven. They were joined by Eleazar and Carmen sometime after they adjusted to their vegetarian lifestyle, and later by Laurent who began a brief romantic flirtation with Irina before he was killed by the Uley pack of werewolves. The coven then suffered another loss: Irina, again at the hands of the Volturi. At this difficult time, they were joined by Garrett, who had formed an attachment with Kate. (Ctrl/Cmd+V) Eleazar   and his mate   Carmen,   Tanya ,   Irina   (deceased),   Kate , and later Kate's mate   Garrett   are members of the Denali coven. Like the Cullens, the Denali coven practices a diet of drinking animal instead of human blood. They are considered to be cousins of the Cullen family, though the relationship is put under strain in   Eclipse   when they refuse to fight Victoria and her army because of Irina's vendetta against the werewolves. Tanya, their leader, has strawberry blonde hair and once expressed an interest in   Edward Cullen, though he turned her down. Carmen speaks fluent Spanish and was the first to listen to and not fear Renesmee for being a half-breed. Eleazar, a former member of the Volturi guard, speaks fluent Spanish as well and has the ability to vaguely identify the gifts of other vampires. Garrett, a tall, rangy vampire with ruby eyes and long sandy hair, is an adventurer, and alludes to being an   American Patriot. He joins the Denali coven in   Breaking Dawn   and becomes Kate's mate. Kate's special ability is the production of an electric current over her skin that can shock and incapacitate attackers. She assists Bella in learning to use her new ability to mentally shield those around her.

Sasha, Vasilii, and Irina were former members of the Denali coven. Sasha, who created Tanya, Kate, Irina, and Vasilii, was executed by the Volturi for creating an immortal child, Vasilii. Volturi law prohibits creating an immortal child, as they are unpredictable and have no self-control. For this reason, both Sasha and Vasilii were destroyed, and since then the Denalis have maintained respect for Volturi law. Laurent was Irina's mate, and she holds a grudge against the Quileute wolves for destroying him. She arrives to make peace with the Cullens in Breaking Dawn, but before speaking with them, she sees Renesmee, mistakenly assumes she is an immortal child, and notifies the Volturi. After determining that Renesmee is not an immortal child, the Volturi destroy Irina in order to provoke her sisters into attacking them, thus giving them an excuse to destroy them along with the Cullens and their allies.

In both parts of The Twilight Saga: Breaking Dawn, the Denalis are portrayed by MyAnna Buring as Tanya, Christian Camargo as Eleazar, Maggie Grace as Irina, Mía Maestro as Carmen, Casey LaBow as Kate, and Lee Pace as Garrett. Sasha is portrayed by Andrea Powell.

The Denali coven is the third largest vampire coven.

History
The coven originated in Slovakia and consisted of Sasha and her "daughters," Tanya, Kate, and Irina. All three were changed around the same century. At an unknown time, Sasha secretly created an immortal child, Vasilii. When the Volturi found out, they came to destroy the entire group but Aro chose to spare the sisters, since they knew nothing about the child. Sasha and Vasilii, however, were destroyed.

The three sisters then searched for pleasurable company of men to deal with their loss, and subsequently are the originators of the "succubus" legend; a demon in the form of a beautiful woman who has sexual intercourse with men before killing them. Eventually, they grew lonely over the years by the scarred pain of their deceased mother and some of the men they'd killed. Tanya decided to try a vegetarian diet to see if she could gain control to avoid killing men while sleeping with them. The method proved effective, and Kate and Irina joined her. The sisters then relocated to Denali for its wide population of animals, and they learned to avoid killing men during sexual intercourse over the centuries.

At some point, Carmen and her mate Eleazar, a former guard to the Volturi, found the three sisters and stayed with them to test their lifestyle, eventually joining their family. Also at an unknown time, they met the Cullen family, and the two covens became strong allies and close friends, though they prefer to think of each other as cousins due to their similar diet. Tanya developed romantic feelings for Edward Cullen, but he did not reciprocate.

Midnight Sun
In the partial draft of Midnight Sun, Edward comes to stay with the Denalis after his first uncomfortable encounter with Bella Swan (see Twilight). Tanya is initially led to believe that he has decided to return her feelings, but he tells her that it is not so. Despite this, she continues to pursue him, eventually leading to Kate and Irina telling her that she is annoying Edward. After six days, Tanya persuades him to find the courage to face his problems back home.

New Moon - Eclipse
A vampire named Laurent comes to stay with the Denalis after recently leaving a coven of non-vegetarian vampires, and is ready for a change in his life, which happens when he and Irina fall in love. At one point, however, he returns to Forks as a favor to his old friend, Victoria, to 'get the lay of the land for her' so that she can hunt Bella Swan. While he is there, he runs into Bella in the middle of hunting. When he is about to kill her personally, a pack of shape-shifters, who the Cullens happened to have a treaty with, kill him before he could get to her. Two months later, the Cullens call for aid from the Denalis after finding out that Victoria is creating an army of newborns to destroy the Cullens and kill Bella. The Denalis agree to help them, but at Irina's request to avenge Laurent's death by wiping out the shape-shifter pack. Carlisle refuses to allow this, and the Denalis abandon their long-time friends. The Cullens are forced to form an alliance with the shape-shifters instead, and successfully kill Victoria and destroy her army.

Breaking Dawn
The Denalis later feel guilty about abandoning the Cullens. Soon after the battle, the Denalis, except Irina, attend Bella and Edward's wedding and meet Bella for the first time. In the movie, Irina does attend the wedding but leaves quickly (before the rest of her family) after noticing that the Cullens invited Seth to the wedding.

A few months later, Irina decides to visit the Cullens and finally make peace with them about Laurent's death. When she arrives in Forks, however, she sees Bella hunting with her shape-shifter friend, Jacob Black, and Renesmee Cullen, whom she mistakes to be an immortal child. Remembering Sasha's fate and her anger at the Cullens for not avenging Laurent's death, she goes to the Volturi and reports the Cullens' "crime". The rest of the Denalis are once again called upon by the Cullens for aid. Renesmee, the child Irina had seen, is really Bella and Edward's half-human half-vampire daughter. The Denalis, after some persuasion, agree to testify this for the Cullens against the Volturi. In the movie, Edward, Bella, Jacob, and Renesmee travel to the Denalis' home to tell them of the matter. Kate, Eleazar, and Tanya also help Bella practice her power and fighting skills to prepare her for the potential battle.

When the Volturi arrive, Irina realizes she had been mistaken. After admitting this, Caius has her killed to try to provoke a fight. His efforts fail, and the Volturi depart after Aro decides Renesmee is not a threat. With the Volturi gone and the situation resolved, the remaining Denalis return home to Denali, with their newest member, Garrett, who has joined them due to his romantic attachment to Kate.

Denali coven extension
The Olympic coven: On the basis of their similar diet, the Olympic coven is considered a loyal extension of the Denali coven, calling themselves cousins. In Breaking Dawn, Tanya apologizes for not aiding the Cullens in the newborn army crisis and states that she and her coven mates are part of the Olympic coven too. The coven consists of Carlisle Cullen, his wife, Esme; their adopted children, Edward, Alice, Emmett Cullen, as well as Rosalie and Jasper Hale; Edward's wife, Bella; and her and Edward's hybrid daughter Renesmee Cullen.

Trivia
The Denali coven is the third largest vampire coven in the Twilight Saga, comprising five vampires. Including the deceased members, the tally goes up to nine members.