Well if we can only breed with elves then our next course of breeding action is clear. We must gather a Elf harem! Of both genders in case we have a queen!
Good luck as there has been only 1 elven female in Luathbas since the game started in year 800 v;
You demand that she cuts to the point.
"Alright then. I'm here on behalf of my protege, Agrenna, an impoverished lady of twenty years and the last one of her house. Nobody wants to marry such a poor girl, despite the fact that she is of great wits and quite some beauty. I implore you, do me just this one favor and have her married off to one of your sons! Your eldest is already married and you have spares, clearly you can ."
A) She gains everything and the Kingdom gains nothing - you won't get a proposal
worse than this! No marriage.
B) Do your sister a favor and promise her that Agrenna shall be wife of Llewyn, whom you recently pardoned.
C) Do your sister a favor and promise her that Agrenna shall be wife of Romuald, who seem to not be very interested about marriage and politics.
D) Do your sister a favor and promise her that Agrenna shall be wife of Feodh, even if that will take a decade.
E) Tell her to wait a day, in the meanwhile go ask Romuald and Llewyn if they wish to have a marriage arranged for them.
F) Demand that she lists the ancestry of the girl, and her connections, and her parents' connections, and whether she can be trusted, as people are scheming against you EVERYWHERE!