So, every time I try to marry my son off to a princess (as I'm a King, that seems fitting), I'm faced with the 'desires better alliance' rejection. So I wait, and what do I see, that same princess ends up marrying a courtier with no lands, no titles, and no prospects. He's practically peasant.
"Ha, I will not marry my daughter to the likes of you. For the glory of my dynasty, my beautiful daughter will marry Walter, the peasant. He runs his own dung shoveling company you know".