Simple enough for Sioned to say; she had given her prince an heir.
If only one of the three kids would give me an heir.
Three times she miscarried while trying to give me an heir.
He claimed that she was incapable of giving him an heir to the throne.
Nonetheless, Henry soon tired of her, particularly because she had failed to give him a male heir.
She talked of her duty to give the house an heir.
"But if she gives the king an heir, that would exclude Richmond."
"Because you could give me a male heir, but refuse to do so."
Her brother had, by then, been given an heir, so the family line was no longer in danger of extinction.
The first duty of any noble wife is to give her husband an heir.