Lois Griffin is the mother of 2 boys and one girl.She is the wife of Peter Griffin and she has the role to maintain peace and harmony into the family. She is the prototype of a good mother , but she is a realistic one. I mean she also makes mistakes and sometimes does things that are not normal , but all humans do strange things :D.
She struggles to repair the damages caused by her husband and to take care of her 3 childs and she does a hell of a job:D .
Lois Griffin also shares a special connection with Brian, the “pet” of the house because they are both “thinkers” but the real motive I guess is Brian`s crush on her:P sshhh:D don`t tell her :-j