Technically, Bree isn't a Cullen. She was one of the newborns in Victoria'sarmy. Carlisle offered her the chance to surrender. She surrenders, but has a difficult time staying away from Bella when she and Bella are both in the clearing together. When Jane and the others come, Jane uses her power to make Bree tell her about what had happened. Jane is about to destroy Bree, when Edward offers to teach Bree, but Jane denies it and Felix destroys her. The Volturi leave. Sorry this was so long!
*Basically, there is no such thing as Bree Cullen.
Her name is Bree.
Bree broke the rules and carlisle offered for her to become a Cullen but the volturi did not allow it so Jane told Felix to kill her
Bree Tanner was a vampire created by Victoria, with the purpose of fighting to kill the Cullen Family with her army of newborn vampires. Despite her ignorance of the vampire laws, her act of surrendering, and showing adequate control of herself, she was cruelly executed by members of the Volturi by Jane's order.
Bree Bumatai goes by Bree.
Bree who bree adams! Because that is my mom
Bree Amer goes by Bree, and Breezy.
Bree Condon's birth name is Bree Condon.
Bree Bree Bree Breezy Breeze Ana Hope this helps
Bree Luck's birth name is Bree Patrick Hodnett.
Bree Turner's birth name is Bree Nicole Turner.
Bree Nogueira's birth name is Nogueira, Bree Lynn.
Bree Miller's birth name is Bree Ann Miller.