Effects
Modifier values for patch 1.20.1.2 are listed below. Check the in-game tooltip for availability and current setup.
| Modifier | Value |
|---|---|
| Fertility | +50% |
| Life Expectancy (years) | +5 |
| Years of Fertility | +5 |
In play
Fecund: fertility rises by 50%, life expectancy (years) rises by 5, and years of fertility rises by 5. Fecund is the trait a house wants when the next heir is the whole plan. Fertility and the fertile years both move. Sterile is the opposite.
How to get Fecund
- Gain: Congenital, but unlike most genetic traits Fecund has no random birth chance: children get it by inheriting it from a parent who has or carries it (base 80% if both parents are Fecund, 25% if one is). A handful of events can also grant it.
- Remove or lose: Permanent for practical purposes: no treatment or decision removes it, and the character can still pass the trait on to children.
The Blood legacy Architected Ancestry can set Fecund as your dynasty's favoured trait; newborn dynasty members who are neither Fecund nor Sterile then get a 5% chance (10% if a parent is a player) to be born Fecund. Once a few Fecund members exist, marry them to each other to lock it in.
Sources: CK3 Database: Fecund (fecund) · CK3 Database: dynasty legacies
Questions about Fecund
How do you get the Fecund trait in CK3?
Fecund never appears at random at birth. Inherit it from Fecund parents, or unlock the Architected Ancestry dynasty legacy and choose Fecund so newborns in your dynasty have a small chance to be born with it.