There is some dispute over the identity of Cain's mother.

No information about the identity of her mother has been found.

If true, the identity of her mother would be uncertain.

There has been some confusion in recent years about the identity of Connor's mother.

He added that he had no idea about the identity of the child's mother.

There is dispute as to the identity of Antonia's mother.

For legal reasons neither the girl's identity nor that of her mother or foster parents can be revealed.

The identity of her mother is disputed among historians and web sources.

These are in agreement with regard to the identity of William's mother.

Neither the identity of the son's mother nor his birth date is clear.