pam_notify_claim_war_instigator_effect_loss

pam_notify_claim_war_instigator_effect_loss = {
	if = {
		limit = {
			scope:war ?= {
				has_variable = claim_instigator
				var:claim_instigator = {
					is_alive = yes
					save_temporary_scope_as = instigator_temp
				}
				OR = {
					has_variable = claim_joiner
					NOT = {
						any_war_participant = {
							this = scope:instigator_temp
						}
					}
				}
			}
		}
		every_in_list = {
			list = target_titles
			save_scope_as = target
		}
		scope:war = {
			if = {
				limit = {
					has_variable = claim_joiner
				}
				var:claim_joiner = {
					send_interface_message = {
						type = event_generic_bad
						title = pam_instigated_claim_war_lost.t
						left_icon = scope:attacker
						right_icon = scope:defender
						add_prestige_level = -2
					}
				}
			}
			else = {
				var:claim_instigator = {
					send_interface_message = {
						type = event_generic_bad
						title = pam_instigated_claim_war_lost.t
						left_icon = scope:attacker
						right_icon = scope:defender
						custom_tooltip = pam_instigated_claim_war_lost_tt
					}
				}
			}
		}
	}
}

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