Austenasia is currently governed as an Empire. Between June 2025 and March 2026, it operated as a Commonwealth following the suspension of the Constitution and the deposition of the former Emperor. Prior to that period, it functioned as an executive constitutional monarchy.

The monarchy has not been abolished, but the throne is currently vacant. In the interim, Lord Andrew Musgrave serves as Regent, exercising the powers of the Crown to maintain continuity of governance.

List of Previous Austenasian Emperors

Since its founding in 2008, Austenasia has been under the rule of five Emperors, beginning with:

Emperor Terry I Augustus, who reigned from 20 September 2008 to 16 February 2010.

Esmond III Augustus served as the second Emperor of Austenasia, reigning from 16 February 2010 to 20 September 2011, and co-ruling with Emperor Declan I from 19 December 2010. Although the second to ascend the throne, he was titled the third of his name to rule.

Declan I Augustus was the third Emperor of Austenasia, initially co-ruling with Esmond III before his removal from the throne under the 2011 Constitution, after which Declan I became the sole Emperor of Austenasia. He reigned from 19 December 2010 to 20 January 2013.

Jonathan I Augustus, the son of Emperor Terry I, reigned from 20 January 2013 to 29 September 2024. His rule was generally regarded as stabilising, with a focus on continuity and administrative development within the state.

Aggelos I Augustus reigned as Emperor of Austenasia from 29 September 2024 to 3 June 2025. His reign ended following his removal from office after attempting to call an early general election without lawful authority.