She is the co-mother in law of you and your daughter's father in law is your co father in law. :-)
The bible says Adam had other sons and daughters, so they came from there.
when some one has a relation ship and they act as a mother figure to that person.
grandma in law.
I would just call her my second mother
Such would be termed an incestuous relationship, and may be specifically referred to as an Oedipal relationship (after the Greek myth of Oedipus).
Your mother's mother is your Grandmother.
Your mother is not related to your wife's mother.
Your mother is not related to your wife's mother.
Uh, they're your mother and father. Their relationship to each other does not change their relationship to you. Your parents are your parents regardless.
Grand mother
The father of your mother is called your grandfather, and the father of your father is also called your grandfather. In many families, they may have different names or titles, such as "Papa" or "Gramps," but the relationship remains the same. Essentially, both are your grandfathers.
Your mother's mother is your grandmother. You are her grandchild.