coronation_being_crowned_trigger

coronation_being_crowned_trigger = {
	exists = involved_activity
	coronation_living_officiator_trigger = yes
	involved_activity.activity_host = {
		OR = {
			coronation_proper_artifact_crown_trigger = yes
			AND = {
				coronation_proper_artifact_regalia_trigger = no
				any_character_artifact = {
					artifact_slot_type = helmet
				}
				involved_activity = {
					has_activity_option = {
						category = special_type
						option = coronation_type_anointment
					}
				}
			}
		}
	}
	
}

As written in game/common/scripted_triggers/10_ach_scripted_triggers.txt.