|Most Serene Principality of Axvalley|
|— Crown Dependency of Austenasia —|
|Established||20 February 2013|
|- Governing Commissioner||Rubens Machado, CAO|
|- Lord Lieutenant||Victor Silveira Verona|
|- Total||0.09 km2 (0 sq mi)|
The Principality of Axvalley was a Crown Dependency of the Empire of Austenasia situated in South America, bordered on all sides by the Minas Gerais state of Brazil. Established on 20 February 2013, the territory was formally annexed by an Imperial Decree. Axvalley was dissolved on 6 August 2017 by the request of its population.
Axvalley was governed by its founder Rubens Machado, who ruled as Governing Commissioner in the name of the Emperor. Upon its annexation, Axvalley was Austenasia's largest (remaining such until the expansion of Corinium Terentium in January 2016) and most populous (remaining such until the expansion of New Richmond in September 2014), measuring nine hectares with a population of seven. Five of its residents were Roman Catholic, and two were Spiritualist. The main building used for the administration of the Crown Dependency was known as Francis Palace.
To mark the fifth anniversary of Austenasian independence, September 2013 saw several developments in Axvalley. A flag which Rubens Machado designed for Axvalley was adopted on 4 September 2013. On 12 September, Axvalley changed its formal name to the Most Serene Principality of Axvalley, and on 21 September, Machado gave as an honorary hereditary status the title Lord Lieutenant to fellow resident Victor Verona, naming him the "Second Man of [the] Principality."