bestow_title_shared_effect

bestow_title_shared_effect = {
	create_title_and_vassal_change = {
		type = created
		save_scope_as = ecclesiastical_bestow_title_change
		add_claim_on_loss = no
	}
	scope:target = {
		change_title_holder = {
			holder = scope:bestowed_title_holder
			change = scope:ecclesiastical_bestow_title_change
		}
	}
	resolve_title_and_vassal_change = scope:ecclesiastical_bestow_title_change

	scope:target ?= {
		if = {
			limit = { tier = tier_empire }
			scope:bestowed_title_holder = {
				add_opinion = {
					modifier = received_title_empire
					target = scope:bestowing_cleric
					opinion = 50
				}
			}
		}
		else_if = {
			limit = { tier = tier_kingdom }
			scope:bestowed_title_holder = {
				add_opinion = {
					modifier = received_title_kingdom
					target = scope:bestowing_cleric
					opinion = 25
				}
			}
		}
		else_if = {
			limit = { tier = tier_duchy }
			scope:bestowed_title_holder = {
				add_opinion = {
					modifier = received_title_duchy
					target = scope:bestowing_cleric
					opinion = 15
				}
			}
		}
	}
    if = {
    	limit = {
    		NOT = { government_has_flag = government_is_theocracy }
    		top_participant_group:the_christian_church ?= {
				OR = {
					participant_group_type = christian_clerical_main_power_rulers
					participant_group_type = christian_regular_main_power_rulers
				}
			}
			situation:the_christian_church ?= {
				situation_top_has_catalyst = catalyst_hof_bestowed_title
			}
			scope:target.tier >= tier_kingdom
    	}
    	if = {
    		limit = {
    			exists = scope:target
    			scope:target.tier >= tier_empire
    		}
    		situation:the_christian_church = {
    			trigger_situation_catalyst = catalyst_hof_bestowed_title_major
    		}
    	}
    	else = {
    		situation:the_christian_church = {
    			trigger_situation_catalyst = catalyst_hof_bestowed_title
    		}
    	}
    }
    else_if = {
    	limit = {
    		government_has_flag = government_is_theocracy
    		top_participant_group:the_christian_church ?= {
				OR = {
					participant_group_type = christian_clerical_main_power_rulers
					participant_group_type = christian_regular_main_power_rulers
				}
			}
			situation:the_christian_church ?= {
				situation_top_has_catalyst = catalyst_hof_bestowed_title_clergy
			}
    	}
    	if = {
    		limit = {
    			exists = scope:target
    			scope:target.tier >= tier_empire
    		}
    		situation:the_christian_church = {
    			trigger_situation_catalyst = catalyst_hof_bestowed_title_clergy_major
    		}
    	}
    	else_if = {
    		limit = {
    			exists = scope:target
    			scope:target.tier >= tier_kingdom
    		}
    		situation:the_christian_church = {
    			trigger_situation_catalyst = catalyst_hof_bestowed_title_clergy
    		}
    	}
    	else = {
    		situation:the_christian_church = {
    			trigger_situation_catalyst = catalyst_hof_bestowed_title_clergy_minor
    		}
    	}
    }
	scope:bestowing_cleric = { save_scope_as = cleric }
    if = {
    	limit = {
    		scope:bestowing_cleric = {
    			is_ai = no
    		}
    	}
    	ecclesiastical_title_bestowing_clerical_hesitation_effect = yes

As written in game/common/scripted_effects/pam_effects.txt.