

Women effectively stop being fertile after they reach 40+. This increases county control and development faster and more sustainably than any other technique. Try to have the Dukes with same combination, too. (a) Guardian's skill stat + knowledge statĪlways try to have counties bring ruled by someone having the same Culture and Religion as the county holdings. When educating a child, the three things that matter the most are:

Forbid them from service, and keep inviting new knights whenever the option comes. When having well-groomed heirs/sons, no matter how high their prowess is, think twice before making them your Knights/Hetaerias/Shoorveers etc. Consider sacrificing your heir by sending him alone into a battle, so that his ~15yr old son ascends to the throne. So if your heir starts rule now, they'll max rule for 20 years before death.

So if you're 60+, your heir may be 30-40, and your heir's heir may be ~15. The longer a single character rules, the more stable the rule will be. When trying to gain land from a ruler by waging multiple wars over the years, never ransom their captured family. The simplest way to ensure your heir has very good Piety generation is to educate them yourself, since you have some over their personality traits. Peasant uprising leaders always have excellent Martial and Prowess stats, so consider recruiting them after defeating. Marrying daughters into Kingdoms with 1/2 children is the easiest way to gather claims for whole kingdoms. 'Golden Obligations' skill in Stewardship skill tree is by far the easiest way to make money early on in the game (for non-tribal rulers). I'm adding here some CK3 tips I figured out many hours into the game. Currently, /r/CrusaderKings is operating its seventh communal game.
CRUSADER KINGS 3 TIPS AND TRICKS SERIES
CRUSADER KINGS 3 TIPS AND TRICKS MODS
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