@geraldine08172006
Well, it did happen on occasion that widows became the head of the house because all the men and boys were dead.
Women of old might not have had any social status to speak off, but they could still own things.
Now if they were to get married on the other hand, then that would be a different ballgame.
But because she also doesn't have any parents to pay or receive a douvery it's more liberal then it might else have been.
Rich women usually married poor nobles, and poor male nobles usually married into a rich merchant family to secure their future.
Regardless if the women were young, old or had had previous engagements and were widows or not.
It was only different for royalty because they were usually required to mary another prince or princess, or a noble family at minimum to uphold the standards of nobility.
The male lead doesn't appear to be a born noble and is probably just a regular knight ( who by technicality still are nobles in some old European countries, but I digress )
Still, this is a grose generalisation of the political intrigue that was the medival noble socity and every rule has it exceptions.