If the higher title of the duchies you use to create a new realm title exist they never transfer.
Thanks. Good to know.
Yeah, I just subjugated Zemigalians early game for the title. ...
So i tried to recreate the scenario with the count of Zemigalia three times...
and to make it short, one son inherited the kingdom title and a duchy title (didn't matter if the titular or a de jure title) and the
other two duchy titles, which were shown as going to the other two sons, got destroyed.
I had changed game rule for de jure requirement once, but it didn't make a difference.
Haven't played for a while. Wonder that not more complained and posted a bug report. At least i couldn't find one.
While i'm usually a bit sceptical at these claims, there appear for sure to be one or more bugs in that story.
Just don't know where.
*a bit later*
Tested the same with the feudal count of Capua and duchy of Ancona, Ferrara and Spoleto and Gavelkind and again the two
duchy titles got destroyed.
So more or less confirmed to not be a tribal or particular succession type caused issue.
The weird part was, that despite the two titles destroyed, the two other sons were still displayed as heirs to them...
Maybe the de jure requirement game rule is simply bugged and always on "required".
Though, that wouldn't explain why your titular title gets destroyed, but maybe the bug doesn't differentiate...
Hmm..well that can't be intended.
Seriously if they don't fix this game....*grumble*