In the game I'm playing that started as Count of Salerno, my third ruler inherited rather luckily, the kingdom of Germany. It was falling apart before his grandfather became king, which was kinda shortlived as he was already old, but anyway, once I became king a few duchies and independent counties pledged allegiance again, but the realm is a horrible mess, I have a ton of counties as direct vassals, counties in one duchy when they should be in another, etc. There's no option to force a county into vassalage of a duke it seems, and I don't want to start revoking titles and regranting them to fix it. Any other way?