send_child_to_holy_order_tooltip_effect

send_child_to_holy_order_tooltip_effect = {
	scope:recipient = {
		add_trait = order_member
		add_piety_level = 1
		custom_tooltip = character_will_leave_court_holy_order
		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
				}
			}
		}
	}
}

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