It's Bella's birthday today!! HAPPY BIRTHDAY, BELLA! She's 23 years young. Here's a little bit about this Vampire Girl . Isabella Marie "Bella" Swan, was born to Charlie Swan and Renée Dwyer on September 13, 1987. In Twilight, she is a 17 years old girl who transfers schools from Phoenix, Arizona to Forks, Washington to live with her father, where she falls in love with a vampire, Edward Cullen. In Breaking Dawn, she marries Edward and becomes a full member of the Olympic Coven. She is transformed into a vampire by Edward after nearly dying giving birth to their daughter, Renesmee Cullen, a vampire/human hybrid. As a human, Bella possessed a natural immunity to the mental powers of vampires. After her transformation she develops it into the ability to project a mental shield she can use to protect others from the mental powers of other vampires. Kate and Zafrina were pivotal in her mastery of this skill. Read up on more about Bella and Twilight a