The succession after Horthy's death or abdication was never officially established; presumably the Hungarian Parliament would have selected a new regent, or possibly attempted to restore the Habsburgs under Crown Prince Otto. In January 1942, Parliament appointed Horthy's eldest son István as Deputy Regent and expected successor. Whether this represents an attempt to gradually re-establish monarchy in Hungary is unclear; at any rate, István was killed in an airplane crash in August that year, and a new Deputy Regent was not appointed.