Posie Halliwell

History
Posie Patricia Halliwell is born to Wyatt Halliwell and Sarah Gordon. She has an older brother Matthew. She was named continuing the "P" tradition.

Cousin of the Charmed Ones
She devolped a close relationship with her cousins Sage and Scarlett. It is revelaed that Sage and Scarlett were like the sisters she always wanted but never had. When they went to the past you would often she Sage from the future holding a baby girl. It was thought that she was holding baby Siam, but it turns out it was Posie.

Appearences in the future
It is seen in the last episode, Sage and Charlie are off to work and they kiss their kids. The kids then walk over to an adult Posie holding her son as they drive away and the kids and Posie wave to them.

Notes and Trivia

 * Mackenzie Foy, the actress who played Posie, was friendswith G.Hannelius, the actress who played Sage, before the show was even thought of.
 * Posie is a capricorn.
 * Posie was the only grandchild of Piper and Leo that had her name start with P. Her brother Matthew was the only other grandchild that's name didn't start with S.