quick question for ck2+. Playing as duke of brittany, currently a vassal of france, one of my vassals, count of anjou, has a claim to a neighboring county belonging duke of normandy (he never won england). If I press the claim and win the war my count is now the count of maine as well, however it says he will not become my vassal. How does this work? Does he have two lieges? Should I even press the claim?