Major decision · Major Decisions

Elevate Confederation

What was once a bond of necessity — warriors sworn to stand together against the storm — must now become something greater. Let the leaders of warbands become lords, the chieftains become vassals, and the confederation stand as one under a single banner.

Requirements

The lines the game itself shows for this decision's conditions:

You have at least 5 Confederates
All of the Confederates have at least 25 Opinion of you
No other Confederate has the same or higher Level of Fame
There are Confederates at War

Shown to a character when (is_shown) (7 lines of game script)

is_confederation_member = yes
is_landed = yes
NOT = {
	exists = confederation.leading_house
}
is_playable_character = yes
exists = confederation

As written in game/common/decisions/dlc_decisions/mpo/mpo_decisions.txt.

Can be taken when (is_valid) (49 lines of game script)

prestige_level >= 3
is_independent_ruler = yes
custom_tooltip = {
	text = confederation_kingdom_decision_vassal_req
	confederation = {
		any_confederation_member = {
			highest_held_title_tier >= tier_county
			count >= 5
		}
	}
}
custom_tooltip = {
	text = confederation_kingdom_decision_vassal_opinion_req
	NOT = {
		confederation = {
			any_confederation_member = {
				this != root
				opinion = {
					target = root
					value < 25
				}
			}
		}
	}
}
custom_tooltip = {
	text = confederation_kingdom_decision_vassal_prestige_level_req
	NOT = {
		confederation = {
			any_confederation_member = {
				this != root
				prestige_level >= root.prestige_level
			}
		}
	}
}
is_available_adult = yes
is_at_war = no
is_tributary = no
custom_tooltip = {
	text = confederation_kingdom_decision_vassal_wars_req
	NOT = {
		confederation = {
			any_confederation_member = {
				is_at_war = yes
			}
		}
	}
}

As written in game/common/decisions/dlc_decisions/mpo/mpo_decisions.txt.

Effects

You get a Kingdom-Tier Title and all Confederates become your Vassals The Kingdom will have no De Jure lands
Your Kingdom gets the Confederation Elective Succession Law Succession Law
You get Confederate King Modifier for 15 years
All Vassals get Confederate Vassal Modifier
All Counties get Confederate Lands Modifier for 30 years

Effect (114 lines of game script)

custom_tooltip = confederation_kingdom_creation_tt
custom_tooltip = confederation_succession_tt
custom_tooltip = confederation_king_modifier_tt
custom_tooltip = confederation_vassal_modifier_tt
custom_tooltip = confederation_county_modifier_tt
save_scope_as = new_king_ruler
hidden_effect = {
	confederation = {
		every_confederation_member = {
			add_to_list = confederation_vassals
			every_tributary = {
				limit = {
					highest_held_title_tier <= tier_duchy
				}
				add_to_list = confederation_vassals
			}
		}
	}
	primary_title = {
		save_scope_as = old_title
	}
	save_scope_as = confederation_offerer
	create_dynamic_title = {
		tier = kingdom
		name = CONFEDERATION_CULTURE_NAME
		adj = CONFEDERATION_CULTURE_NAME_ADJ
		article = article_CONFEDERATION_CULTURE_NAME
	}
	scope:new_title = {
		set_variable = {
			name = confederation_culture
			value = scope:confederation_offerer.culture
		}
	}
	scope:new_title = {
		set_color_from_title = root.capital_county
		set_definitive_form = yes
	}
	create_title_and_vassal_change = {
		type = created
		save_scope_as = change
		add_claim_on_loss = no
	}
	scope:new_title = {
		set_destroy_on_gain_same_tier = yes
		set_no_automatic_claims = yes
		set_can_be_named_after_dynasty = no
		set_can_use_nomadic_naming = no
		change_title_holder = {
			holder = root
			change = scope:change
		}
	}
	every_in_list = {
		list = confederation_vassals
		change_liege = {
			liege = root
			change = scope:change
		}
	}
	resolve_title_and_vassal_change = scope:change
	create_title_and_vassal_change = {
		type = swear_fealty
		save_scope_as = change
		add_claim_on_loss = no
	}
	every_in_list = {
		list = confederation_vassals
		limit = {
			NOT = {
				this = root
			}
		}
		if = {
			limit = {
				has_government = herder_government
			}
			every_held_title = {
				limit = {
					tier = tier_county
					title_province = {
						has_holding_type = herder_holding
					}
				}
				title_province = {
					set_holding_type = nomad_holding
				}
			}
			change_government = nomad_government
		}
		change_liege = {
			liege = root
			change = scope:change
		}
	}
	resolve_title_and_vassal_change = scope:change
	scope:new_title = {
		generate_coa = yes
		add_title_law = confederation_elective_succession_law
		set_capital_county = root.capital_county
	}
	set_primary_title_to = scope:new_title
	confederation = {
		disband_confederation = yes
	}
	every_in_list = {
		list = confederation_vassals
		limit = {
			this != root
		}
		trigger_event = mpo_decisions_events.0004
	}
	trigger_event = mpo_decisions_events.0005
}

As written in game/common/decisions/dlc_decisions/mpo/mpo_decisions.txt.

Source: game/common/decisions/dlc_decisions/mpo/mpo_decisions.txt and the English localisation, Crusader Kings III 1.20.0.3.