coronation_create_artifact_game_start_effect

coronation_create_artifact_game_start_effect = {
	save_scope_as = owner
	if = {
		limit = {
			OR = {
				realm_size >= 60
				highest_held_title_tier >= tier_empire
			}
		}
		set_artifact_rarity_famed = yes
	}
	else = {
		set_artifact_rarity_masterwork = yes
	}

	if = {
		limit = {
			coronation_proper_artifact_crown_trigger = yes
		}
		save_scope_value_as = {
			name = artifact_type
			value = flag:crown
		}
	}
	else_if = {
		limit = {
			coronation_proper_artifact_regalia_trigger = yes
		}
		save_scope_value_as = {
			name = artifact_type
			value = flag:regalia
		}
	}
	else = {
		random_list = {
			1 = {
				save_scope_value_as = {
					name = artifact_type
					value = flag:crown
				}
			}
			1 = {
				save_scope_value_as = {
					name = artifact_type
					value = flag:regalia
				}
			}
		}
	}
	primary_title = {
		save_scope_as = crown_title
		ordered_past_holder = {
			limit = {
				NOT = { this = scope:owner }
				house = scope:owner.house
				time_since_death ={
					years >= 80
				}
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				dynasty = scope:owner.dynasty
				time_since_death ={
					years >= 80
				}
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				culture = scope:owner.culture
				time_since_death ={
					years >= 80
				}
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				faith = scope:owner.faith
				time_since_death ={
					years >= 80
				}
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				dynasty = scope:owner.dynasty
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				culture = scope:owner.culture
			}
			alternative_limit = {
				NOT = { this = scope:owner }
				faith = scope:owner.faith
			}
			alternative_limit = {
				NOT = { this = scope:owner }
			}
			alternative_limit = {
				always = yes
			}
			save_scope_as = title_founder
			# For title-specific localization usage
			save_scope_as = title_holder_reference
		}

		# Fix 'title_holder_reference' if the founder cannot be a good reference for the title (rank / name / etc) by falling back to the current owner.
		if = {
			limit = {
				scope:title_holder_reference ?= {
					is_alive = yes
					is_ruler = no
				}
			}
			scope:owner = {
				save_scope_as = title_holder_reference
			}
		}
	}

	if = {
		limit = {
			game_start_date >= 1170.1.1

As written in game/common/scripted_effects/10_ach_effects.txt.