Jorgen Jorgensen was talented in many ways; sailor, spy, seditionist and silly bugger.
He was present at the foundation of Hobart, witnessed the Battle of Copenhagen, arrested the Danish Governor of Iceland then declared himself the Protector of Iceland - which lasted barely 2 months before he was voted off the island and back to England.
He managed to get employed by the British Intelligence Service where he translated documents and wandered about as a spy during the Napoleonic Wars, but then ran into a little trouble where he was accused of theft and voted back to an island , Tasmania.
The Convict King is immortalised in stone relief on the beautiful Ross Bridge with his crown.
Further reading -
Jørgen Jørgensen: The Convict King