bastard_real_father_discovery_on_birth_effect

bastard_real_father_discovery_on_birth_effect = {
	hidden_effect = {
		random_secret = {
			limit = {
				OR = {
					secret_type = secret_unmarried_illegitimate_child
					secret_type = secret_disputed_heritage
				}
				secret_target = scope:child
			}
			save_scope_as = secret
		}

		scope:child.real_father = {
			random = {
				chance = real_father_suspicion_base_value
				compare_modifier = {
					value = intrigue
				}
				modifier = {
					add = 25
					has_trait = intellect_good
				}
				modifier = {
					add = -20
					has_trait = intellect_bad
				}

				trigger_event = {
					id = birth.1006
					days = 5
				}
			}
		}
	}
}

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