Family Marriage Only
If a character has pure blood, the character can only marry his/her close family member (parents,kids,siblings)
Pure blood trait is modified and will be inherited 100%
Modified from mod "Strictly enforced divine marriage" , original mod use faith as a trigger for family marriage.
https://steamcommunity.com/sharedfiles/filedetails/?id=2961866746&searchtext=strictly
Pure-blooded is used as a trigger because AI’s religion (your family member) can be changed in the game, with this mod you can keep your holy blood forever in the house.
If you want marriage happens only between siblings (To avoid big age gap between parents and kids, or even grandparents and grandson,granddaughter for AI). You may check another mod " Sibling marriage only"
https://steamcommunity.com/sharedfiles/filedetails/?id=3345816077
