send_child_to_holy_order_effect

send_child_to_holy_order_effect = {
	$GRANDMASTER$ = {
		add_courtier = scope:recipient
		if = {
            limit = {
                scope:recipient = {
                    is_close_family_of = scope:actor
                    NOT = {
                    	has_trait = bastard
                    }
                }
            }
            add_opinion = {
                target = scope:actor
                modifier = pleased_opinion
                opinion = 25
            }
        }
        else_if = {
            limit = {
                scope:recipient = {
                    is_close_family_of = scope:actor
                }
            }
            add_opinion = {
                target = scope:actor
                modifier = pleased_opinion
                opinion = 15
            }
        }
	}
	scope:recipient = {
		add_trait = order_member
		add_piety_level = 1
		if = {
			limit = { is_ruler = yes }
			depose = yes
		}
		if = {
			limit = {
				faith != $GRANDMASTER$.faith
			}
			set_character_faith = $GRANDMASTER$.faith
			set_character_rite = $GRANDMASTER$.rite
		}
		if = {
			limit = {
				is_married = yes
			}
			every_spouse = {
				divorce = scope:recipient
			}
		}
		if = {
			limit = {
				exists = betrothed
			}
			break_betrothal = betrothed
			if = {
				limit = {
					has_been_promised_grand_wedding = yes
				}
				break_grand_wedding_betrothal_effect = yes
			}
		}
		if = {
			limit = {
				is_concubine = yes
			}
			this.concubinist = {
				remove_concubine = scope:recipient
			}
		}
		if = {
			limit = {
				number_of_concubines > 0
			}
			every_concubine = {
				scope:recipient = {
					remove_concubine = prev
				}
			}
		}
	}
	take_vows_faith_opinion_effect = yes
	if = {
		limit = {
			$GRANDMASTER$ = {
				has_realm_law = cultural_holy_order_succession_law
				NOT = {
					culture = {
						has_same_culture_heritage = scope:recipient.culture
					}
				}
			}
		}
		$GRANDMASTER$ = { save_scope_as = grandmaster }
		custom_tooltip = military_order_wrong_culture_tt
	}
}

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