Trish Wyatt (2NDC)

Trish is the younger daughter of Piper Halliwell and Leo Wyatt.

Family
She is the younger daughter of Piper Halliwell and Leo Wyatt. She has an older sister, Melinda, who killed their mother just to keep Trish from being born in the original time line.

The Unknown Factor
Charlie told Piper that Melinda killed Piper while she was pregnant with her second daughter. As a result Trish was not born the first time around, but Charlie's arrival prevented that from happening the second time around.