If you have too many daughters, your best bet is to marry them to form alliances, or replace a dynasty with inheritance. You can also make them councillors, knights or vassals depending on your religion and laws.
Those interested in accumulating inheritable traits could also use daughters to help through strategic marriages.
As in olden times, you can marry off your daughters to strange families to form alliances. There are a few other reasons to get married in CK3, depending on what type of marriage you choose.
Normal Marriage – Covenants
The main reason for marrying your daughters is to build powerful alliances with other rulers. Allies can be summoned during the war and will fight alongside you.
In a normal marriage, the children come from the father’s dynasty.
While this means you cannot inherit through your daughters, it makes it easier for other characters to consent to the marriage.
Matrilineal Marriage – Covenants and Inheritance
This type of marriage allows the children to inherit the mother’s dynasty. This way you can inherit through your daughters.
Matrilineal marriage is required for those who play as wives or have no sons. Otherwise you have no dynastic heirs and the game ends.
Of course, matrilineal marriages can also be used to form alliances.
However, it is sometimes impossible to get other rulers to consent to the marriage when their son is an heir.
Rulers will often let you marry their second or third heir matrilineally, so if your neighbors have enough children, you still have a chance for an alliance.
Tip: If you matrilineally marry your dynasty member to a secondary heir in another realm, you can murder the heirs before them. Then, after two generations, your dynasty will reign!
Depending on your religion, your daughters can often be assigned to your council.
Some players can only appoint daughters as spymasters, and others are free to place daughters in other positions.
This is useful when you have a very strong dynasty with high attributes as they are more effective than other candidates.
The Coterie Dynasty perk tree also further empowers your family members, making them even more powerful as council members.
This tree is from the Iberia DLC and is only available for Iberian heirs or those with imperial capitals in Iberia.
Beware of opinion buffs from powerful vassals wanting council seats! Reserving them all for the family can complicate vassal management.
Shield Maidens & Knights
In some cultures and religions, you can turn able-bodied women from your family into shieldmaidens.
This allows them to serve as knights like men.
Depending on your religion, all women can become knights by default.
This is especially useful if your heirs are male. You don’t have to risk your life in battle and can instead raise your daughters to become mighty knights.
Most of the time, women in CK3 can become minions. This is usually caused by the succession when there are no more male candidates in the dynasty.
If succession is set to male only, this is never possible.
However, with the right laws, you can freely bestow titles on women.
With this law you can make your daughters vassals.
Refinement of your bloodline
You can use daughters to breed good traits into your dynasty, like beautiful or Herculean.
This is accomplished by marrying her to a man with one of these traits, preferably one or more that your daughter does not have.
Your children could inherit good traits from either parent.
If so, you can still marry these children to other characters, add more traits, or strengthen them.
Once you have characters with good traits, marry them back into your main line if possible. Ideally, you will have focused on one trait in your primary line and another trait in your daughter’s line.
This technique allows you to focus on several heritable traits at once.
This reduces the number of generations you would spend collecting traits!
Of course, additional sons can also be used for this technique.
https://www.fandomspot.com/ck3-what-to-do-with-daughters/ What to do with daughters in CK3 – FandomSpot