Covens.

[Jane Volturi]

The Volturi

The Volturi are a civilized coven of vampires, the largest and most powerful one in the series, and enforce the laws of the vampire world The Volturi act as the unofficial royalty of the vampire world, and operate from the city of Volterra, Italy. They have existed for at least three thousand years, and are the largest coven in existence, followed by the Olympic and the Denali covens. Carlisle Cullen lived with them for a while in his early years before he came to America.

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". The Volturi deal swiftly and decisively with anything they consider a threat to their city or to the vampire world; for example, they protect vampires' existence in secret.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.

The Olympic Coven

The Olympic Coven, better known as the Cullen family, is a coven of vegetarian vampires. It consists of Carlisle, Esme, Alice, Emmett, and Edward Cullen, as well as Rosalie and Jasper Hale. Later in the series, Bella Swan and her daughter with Edward, Renesmee Cullen, also become members of the coven.

They are known to be very loyal to each other (in the film they are shown each wearing a piece of jewelry featuring the Cullen crest). They currently live in Forks, Washington, which they have no plans of leaving, unless forced to. They form four couples: Carlisle and Esme, Edward and Bella, Emmett and Rosalie, Jasper and Alice. Edward, Esme, Rosalie and Emmett. The Cullens are the second largest and most powerful vampire coven, with only the Volturi ranking higher in number and power.

The Romanian Coven

The Romanian Coven is a vampire coven located somewhere in Romania. It consists of Vladimir and Stefan. After the Hostile takeover by the Volturi the Romanians vanished an till present day that is.

This list will also be updated as things change and I find out more information about other covens

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Jane Volturi