nomadic_heir_cleanup_realm_effect

nomadic_heir_cleanup_realm_effect = {
	if = {
		limit = {
			is_landed = yes
		}
		create_title_and_vassal_change = {
			type = granted
			save_scope_as = change
		}
		if = {
			limit = {
				exists = liege
			}
			liege = {
				save_scope_as = old_liege
			}
		}
		create_character = {
			location = $CLEANUP_SCOPE_CHAR$.location
			template = nomadic_chieftain_character
			save_scope_as = inheritor_char
		}
		every_held_title = {
			title_tier > barony
			limit = {
				is_landless_type_title = no
			}
			change_title_holder = {
				holder = scope:inheritor_char
				change = scope:change
			}
		}
		resolve_title_and_vassal_change = scope:change
		if = {
			limit = {
				exists = scope:old_liege
			}
			scope:inheritor_char = {
				create_title_and_vassal_change = {
					type = swear_fealty
					save_scope_as = change
				}
				change_liege = {
					liege = scope:old_liege
					change = scope:change
				}
				resolve_title_and_vassal_change = scope:change
			}
		}
	}
	if = {
		limit = {
			top_liege != $CLEANUP_SCOPE_CHAR$
		}
		create_title_and_vassal_change = {
			type = independency
			save_scope_as = going_independent
			add_claim_on_loss = no
		}
		becomes_independent = {
			change = scope:going_independent
		}
		resolve_title_and_vassal_change = scope:going_independent
	}
}

As written in game/common/scripted_effects/09_dlc_mpo_scripted_effects.txt.