Patricia "Patty" Halliwell is the mother of Prue, Piper, and Phoebe Halliwell, and Paige Matthews. You travel back in time to meet her young, in her full glory and best form ever. It is 1977, so Prue is seven years old, Piper is four years old, Phoebe is two years old and Paige is newborn toddler right now. Billie Jenkins is not even born yet, not in project. Patricia Halliwell is twenty seven years old now.