So I was playing the Ninepenny Kings, when I noticed something... happen

[AliceVonderland]

Well so, It's kinda self explanatory, but I noticed that when Maelys died, Rhaegar inherited his lordship of Bloodstone.

and yeah, he kind of died... then his sister... then his mom, and dad, and now house Targaryen is 2 40+ people, and 2 infant bastards so... yeah... I know that Rhaegar is the closest none landed male "relative" to Maelys, but is there anyway I can prevent well, plot important characters inheriting land they shouldn't, subsequently getting them murder deathed? I'm asking mostly because I have no idea how to "fix" it myself. just curious, as all it's doing is speeding up the Baratheon inheritance, but still... kind of annoying to see the Targaryens fall to weird AI and not me. but I'm not bitter about it... no not at all.
Edit: I am playing the recent update

 

[MarcusAntonius]

The inheritance laws and the way the Targaryen, Blackfyre, and Baratheon dynasties are set up make it so that Targaryens will inherit from Blackfyres and Baratheons if they're the last of their respective dynasties.

 

[AliceVonderland]

The inheritance laws and the way the Targaryen, Blackfyre, and Baratheon dynasties are set up make it so that Targaryens will inherit from Blackfyres and Baratheons if they're the last of their respective dynasties.

Yes I am aware of that, its just, well, having 2 year old Rhaegar inherit only gets him killed. So I was wondering if there was a way to prevent it, like maybe setting the inheritance laws of the Stepstones to elective or something like that, but am unsure of how exactly to do that.