By the age of 45, it was clear she would never produce an heir.

You will remember that my brother failed to produce an heir either.

The ability to produce an heir was rarely an issue.

Henry himself was under increased pressure to produce an heir.

For the couple, producing an heir is a big responsibility.

Maybe because of their youth, the union failed to produce an heir.

Maybe I can count on you to produce a proper heir.

I am bound to produce an heir to the estate.

Once in the palace, however, she found that only one thing was expected of her: to produce a male heir.

Major issues were his marriages and the failure to produce an heir.