The one and only person left in her true family is Alec. Alec is her twin brother. He is also part of the Volturi.
janes group is Felix. demetri, aro, caius, and Marcus
no. no one knows when it is
Janes last name is never given in any of the books...
They belong to the voturi coven so all of the volturi
Adele
Carlisle, Esme, Emmett, Rosalie, Alice, Jasper and Edward...
only Alec, i think
Well... Demetri is Jane's brother.
carlisle alice rosalie emmett esme edward jasper
Aro Marcus Caius Jane Alec
the volutri!
only Alec, the other boy - supposedly her twin, is ever mentioned as being in Jane's family