Warren Witches

"The powerful line of witches descended from Melinda Warren, a seventeenth century witch that was burned at the stake. The Warren Witches grew stronger with each generation until Patricia Halliwell gave birth to The Charmed Ones, a trio of sisters prophesied to be the most powerful witches the world has ever known. The line continues with their offspring, beginning with Piper's sons, Wyatt and Chris, who have journeyed from the future on occasion to help the current generation."