The Principality of Hutt River, often referred to by its former name, the Hutt River Province, was a micronation in Australia, proclaimed on 21 April 1970 when farmer Leonard Casley declared his farm to be a sovereign state, the "Hutt River Province". He claimed to have seceded from Australia, which occurred during his dispute with the authorities concerning wheat production quotas. A few years later, Casley began styling himself as "Prince Leonard" and granting family members royal titles, although he did not include the word "principality" in the official name until 2006. In 2017, Casley's claim to rulership was taken over by his son Graeme, who dropped the claim to sovereignty on 3 August 2020.
The claimed territory was located 517 km (321 mi) north of Perth, near the town of Northampton in the state of Western Australia. It had an area of 75 square kilometres (29 sq mi), making it larger than several recognised countries. It was not recognised as a country by the Australian Government nor any other national government, and the High Court of Australia and Supreme Court of Western Australia rejected submissions arguing that it was not subject to Australian laws.
