The Principality of Hutt River, previously known as the Hutt River Province, is the oldest micronation in Australia. The principality claims to be an independent sovereign state and to have achieved legal status on 21 April 1970, although it remains unrecognised by Australia and other nations. The principality is located 517 km (354 mi) north of Perth, near the town of Northampton in the state of Western Australia. If considered independent, it is an enclave of Australia. It is a regional tourist attraction.
The principality was founded on 21 April 1970 by Leonard George Casley, who styles himself as "Prince Leonard", when he and his associates proclaimed their secession from Western Australia. His wife Shirley, styled as "Princess Shirley", died on 7 July 2013.