convert_to_feudalism_from_administrative_effect

convert_to_feudalism_from_administrative_effect = {
	#Gain some gold for selling off your estates
	if = {
		limit = {
			any_vassal = {
				any_held_title = { is_noble_family_title = yes }
				exists = domicile
			}
		}
		custom_tooltip = estates_get_bought
		every_vassal = {
			limit = { 
				any_held_title = { is_noble_family_title = yes }
				exists = domicile
			}
			hidden_effect = {
				add_gold = {
					value = {
						value = major_gold_value
						switch = {
							trigger = domicile.num_domicile_buildings
							7 = { multiply = 7 }
							6 = { multiply = 6 }
							5 = { multiply = 5 }
							4 = { multiply = 4 }
							3 = { multiply = 3 }
							2 = { multiply = 2 }
						}
					}
				}
			}	
		}
	}

	#Then change government
	if = {
		limit = { ep3_is_clan_inclined_trigger = yes }
		change_government = clan_government

		#Duchies automatically transfer, need to poke the kingdoms
		if = {
			limit = {
				any_vassal = {
					primary_title.tier >= tier_kingdom
					NOR = {
						government_has_flag = government_is_clan
						government_has_flag = government_is_theocracy
					}
				}
			}
			custom_tooltip = kings_become_clan
			every_vassal = {
				limit = {
					primary_title.tier >= tier_kingdom
					NOR = {
						government_has_flag = government_is_clan
						government_has_flag = government_is_theocracy
					}
				}
				hidden_effect = { change_government = clan_government }
			}
		}
	}
	else = {
		change_government = feudal_government

		#Duchies automatically transfer, need to poke the kingdoms
		if = {
			limit = {
				any_vassal = {
					primary_title.tier >= tier_kingdom
					NOR = {
						government_has_flag = government_is_feudal
						government_has_flag = government_is_theocracy
					}
				}
			}
			custom_tooltip = kings_become_feudal
			every_vassal = {
				limit = {
					primary_title.tier >= tier_kingdom
					NOR = {
						government_has_flag = government_is_feudal
						government_has_flag = government_is_theocracy
					}
				}
				hidden_effect = { change_government = feudal_government }
			}
		}
	}
	
	#Governors become Dukes tooltip
	if = {
		limit = {
			any_vassal = {
				primary_title.tier = tier_duchy
				NOT = { government_has_flag = government_is_clan }
			}
		}
		custom_tooltip = governors_become_dukes
	}
}

As written in game/common/scripted_effects/00_ep3_decision_effects.txt.