The marriage is bugged. I wanted to marry the lady from Drahara, her brother agreed and she agreed, but Drahara was constantly at war and i had to wait. Then Drahara declared war on me, so i destroyed them and my lady changed kingdom, what caused the break of our engagement. I went to her and asked about future and she told something like she is very happy, but she has husband (wtf!?), but she agreed to marry me. I married her and lost relation with her brother.
Another thing is that no one joins me, lords are continuously changing kingdoms but no one ever joined mine, why? My kingdom occupies about 1/3 of the land, i have 99 rtr and almost everyone like me. Persuading someone to join me is hard, too, i won only about 5 though i try all the time.