can_create_spiritual_head_of_faith_title_trigger

can_create_spiritual_head_of_faith_title_trigger = {
	trigger_if = {
		limit = {
			this = faith:christian_faith
		}
		custom_tooltip = {
			text = pam_great_schism_decision_taken
			has_global_variable = pam_great_schism_decision_taken
		}
	}
	num_realm_holy_sites_faithful_holders = {
		COUNT = holy_sites_to_create_spiritual_head_of_faith
		CHARACTER = root
	}
	# Non-mainline rites need one more level of devotion than the mainline rite
	trigger_if = {
		limit = {
			root = { NOT = { rite = faith.main_rite } }
		}
		root.piety_level >= high_piety_level
	}
	trigger_else = {
		root.piety_level >= medium_piety_level
	}
	trigger_if = {
		limit = { has_doctrine_parameter = block_from_create_hof_parameter }
		NOT = { has_doctrine_parameter = block_from_create_hof_parameter }
	}
	root = {
		trigger_if = {
			limit = { faith.religious_head ?= this }
			NOT = {
				custom_tooltip = {
					text = can_create_spiritual_hof_title_trigger_is_hof_tt
					faith.religious_head ?= this
				}
			}
		}
	}
}

As written in game/common/scripted_triggers/00_religious_triggers.txt.