Mary Magdalene was a follower of Jesus after He cast out seven demons from her. She was part of a group of women that helped support Jesus and the disciples out of their own means. She was present at the crucifixion and was among the group that discovered the empty tomb of Jesus. As the group walked back from the empty tomb they were the first to meet the post-resurrected Jesus.
There has been great speculation about Mary Magdalene over the centuries. Some say she was a prostitute before she met Jesus, others say she was a leader among the followers of Jesus, while still others have said she was a the secret lover or wife of Jesus. None of this is biblical.