Lois Griffin

From Family Guy - Wiki on Neoseeker

Lois Griffin (Pewterschmidt being her maiden name) came from a rich family. She married Peter when he was working as a towel boy in her Father's mansion. She married Peter and had three children, Meg, Chris, and Stewie. When she is not doing the housework, she is teaching the piano. Her baby, Stewie tries to kill her multiple times. Sometimes it seems like Lois is the only person in the Griffin household who has any sense. However, there are times when she loses it herself.