1. Unloyality is unrespected
The Volturi are the equivalent of a royal family to vampires. They operate from the city of Volterra, Italy. The Volturi have existed for at least three thousand years, if not more. They are the largest coven in existence, followed by Carlisle's family and Tanya's. However, they do not follow a "vegetarian" diet, as seen in New Moon, in which they capture and murder several humans in a carefully planned "meal". They are considered the de facto royal family of vampires. The Volturi deal swiftly and decisively with anything they consider a threat to their city, or to the vampire world. They destroy anyone who attempts to overthrow them or resist their authority and, at Caius' insistence, have hunted werewolves (true werewolves, not shape-shifters) to near extinction in Europe and Asia.
Although they are not the 'official' royal family of vampires, they still act as though they are, and are an incredibly influential coven. They are also considered 'nighttime patrons of the arts'; as, because of their inability to sleep, they study the arts at night. The Volturi act as guardians, keeping the secret society of vampires hidden from the human world as needed. They often send others to travel from Volterra to destroy overzealous covens from exposing vampires through mass eradication of every vampire (and any humans) present. In the Twilight series, the Volturi are becoming an increasing problem, as they want Bella turned into a vampire as soon as possible. Edward opposes the idea, as he does not want to take away Bella's soul. They also went to Forks, Washington to destroy Victoria's evil coven of young vampires, as they were being a menace to the neighbouring city, Seattle. However, by the time they arrived the fight had already ended, and the werewolves had to escape as the Volturi do not tolerate truces with werewolves. In addition, in the last book "Breaking Dawn" they are seen to come to destroy Renesmee along with those who created and protect her, as they wrongly think she is an "Immortal Child".
The Volturi are known for their amazing and special powers. Jane and Alec, twins and members of the guard, are credited and worshipped for having the most useful powers. Jane can cause someone to believe that they are feeling pain. This excruciating pain makes it easy for the Volturi to attack and destroy their enemies. Alec's powers are also useful when attacking the enemy. He can cut off all senses making the prey unable to see, hear or feel anything, enabling them to kill the victims without a fight. Aro, one of the leaders, can hear every single thought a person/vampire has ever had upon making physical contact with that person. Marcus, also one of the leaders, can sense relationships. Demetri, a member of the guard, is a tracker. He can track a person down once he has the tenor of their mind. He is known as the best tracker in the vampire world. Renata, also a member of the guard is a shield. She shields Aro and stands by his side at all times. She is described in Breaking Dawn as being so close to Aro it appears she is touching him, moving with him as "being so close, her hands slightly outstretched, her hands looked to be "sewn" onto Aro's cloak." She shields physical attacks. When the person/vampire is attacking she repels them by confusing them. They end up going in a different direction and are unaware of what they were doing in the first place. Chelsea, another member to the guard, can manipulate the ties of relationships. This is useful when The Volturi want a specific vampire to join them. Also useful is how she can loosen the binds of The Volturi's enemies, turning them against each other. They formerly had the services of Eleazar, who could see abilities or potential abilities in vampires and humans, though he left after meeting his soulmate, Carmen.
Before the Series
Although they don't make any appearances in Twilight, Aro, Marcus and Caius are mentioned by Edward as the inspiration of the gods in several Italian paintings that belong to Carlisle.
The Volturi are first introduced in New Moon.
The Volturi play a very small role in Eclipse. After finding out about an army of newborns created by Victoria, they sent a portion of their guard to destroy the army. But by the time they arrived, they found that the Cullens (with the aid of a werewolf pack) had already eradicated the army. The guard merely killed a young girl named Bree, the only newborn who had surrendered. They promised to come back and check Bella's mortality soon.
Caius was planning to send a hunting party to Forks to see if the Cullens had turned Bella into a vampire. To stop this, Alice sent the Volturi an announcement for Bella and Edward's wedding. The announcement delayed the Volturi because they weren't sure if it meant that they had actually gotten married or Bella had been turned. In the end, Aro decided that they should send Bella a wedding gift-a thick gold-chained necklace with a diamond the size of a golf ball accompanied by a note saying "I so look forward to meeting the new Mrs. Cullen in person" which was worrying to Bella. Some time after this, the vampire Irina informed the Volturi that the Cullens had created an Immortal Child. They gathered the entire guard together and, with their wives, set out to destroy the Cullens. Aro, meanwhile, had another reason for gathering the entire guard: he was determined to bring Alice into the Volturi (there has been some speculation among the Cullens and their allies that Aro had been waiting for an oppourtunity like this for years).
Aro, Caius and Marcus are the leaders of the Volturi. They command the Volturi's guard and act as representatives when dealing with other covens. Aro has the ability to read every thought a human or vampire ever had simply by making physical contact with them. Marcus has the ability to sense relationships, as demonstrated in New Moon. Unlike Aro and Marcus, Caius is not gifted.
Mates of the Volturi leaders. The wives are also powerful figures of authority, but only go to trials with their husbands on behalf of extremely important matters, not leaving Volterra but once every few centuries. Didyme had the power to make an aura of happiness, similar to Jasper's gift. Unlike Didyme, Sulpicia and Athenodora are not gifted.
The Volturi Guard is a group of vampires with powerful gifts.The Volturi has been shown to invite only vampires with incredibly powerful gifts that the leaders of the coven see as useful to ensuring that their authority amongst the other covens goes unchallenged.When a vampire is invited into the Volturi,he or she is forced to feel content about joining due to Chelsea's gift the ability to manipulate the emotional bonds of others, usually guaranteeing a swift initiation into the group. Felix and Santiago are the only ungifted Volutri guards. The members are as follows: