Mary Winchester

Mary Winchester is the matriarch of the Winchester family and a retired hunter in the TV show Supernatural. She is the daughter of Samuel and Deanna Campbell, the wife of John Winchester, and mother of Dean and Sam Winchester. She was murdered by the demon emperor Azazel exactly six months after Sam was born, which spurred John back into hunting again and abandoned Sam and Dean to avenge Mary's murder causing him to raise Sam and Dean into hunters as well.