* Henry Austin ( architect ) ( 1804 – 1891 ), American architect

* 1857 – Eugène Sue, French novelist ( b. 1804 )

* 1866 – Gábor Klauzál, Hungarian politician ( b. 1804 )

Aga Khan I (; or, less commonly but more correctly (; ), was the title accorded to Hasan Ali Shah (; ; 1804 in Kohak, Iran – 1881 in Bombay, India ), the governor of Kirman, 46th Imam of the Nizari Ismaili Muslims, and prominent Muslim leader in Iran and later in the Indian Subcontinent.

Theseus Fighting the Centaur ( 1804 – 1819 ), Kunsthistorisches Museum, Vienna.

* 1804 – Francis II assumes the title of first Emperor of Austria.

* 1804 – High Possil Meteorite: The first recorded meteorite in Scotland falls in Possil.

At his memorial service on 22 June 1825 his own Requiem in C minor — composed in 1804 – was performed for the first time.

* 1804 – The western Georgian kingdom of Imereti accepts the suzerainty of the Russian Empire

* 1804 – Toussaint Louverture, Haitian Revolutionary ( b. 1743 )

* 1885 – Karl Theodor Ernst von Siebold, German physiologist ( b. 1804 )

" Migration, Radicalism, and State Security: Legislative Initiatives in the Canada and the United States c. 1794 – 1804 " in Studies in American Political Development, Volume 16, Issue 1, April 2002, 48 – 60

The term acquired a special significance in the philosophy of Immanuel Kant ( 1724 – 1804 ), who used it to describe the equally rational but contradictory results of applying to the universe of pure thought the categories or criteria of reason that are proper to the universe of sensible perception or experience ( phenomena ).

Benjamin Disraeli, 1st Earl of Beaconsfield, KG, PC, FRS, ( 21 December 1804 – 19 April 1881 ) was a British Prime Minister, parliamentarian, Conservative statesman and literary figure.

He was crowned Emperor of the French and ruled from 1804 – 1814, 1815.

* Napoleon I ( 1804 – 1814, 1815 ), also King of Italy ( 1805 – 1814 ) and Emperor in Elba ( 1814 – 1815 )

#** Laetitia Christine Bonaparte ( 1804 – 1871 )

#* Napoleon Louis Bonaparte ( 1804 – 1831 )

* Napoleon Bonaparte ( First Consul ), Jean-Jacques Cambacérès ( Second Consul ), Charles-François Lebrun ( Third Consul ), Consuls ( 12 December 1799 – 18 May 1804 )

The current resistance to Russian rule has its roots in the late 18th century ( 1785 – 1791 ), a period when Russia expanded into territories formerly under the dominion of Turkey and Persia ( see also the Russo-Turkish Wars and Russo-Persian War ( 1804 – 1813 )), under Mansur Ushurma — a Chechen Naqshbandi ( Sufi ) Sheikh — with wavering support from other North Caucasian tribes.

In 1842 Charlotte and Emily travelled to Brussels to enrol in a boarding school run by Constantin Heger ( 1809 – 96 ) and his wife Claire Zoé Parent Heger ( 1804 – 87 ).

Improvised pikes, made from bayonets on poles, were used by escaped convicts during the Castle Hill rebellion of 1804.

* Luscombe Castle ( 1800 – 1804 )

Sydney and Parramatta Loyalist Associations, with approximately 50 members each, were formed in 1804 for similar reasons as the English ones and helped put down the Castle Hill convict rebellion in the same year.

In 1804 the convicts rebelled in the Castle Hill convict rebellion, also known as the second ' Battle of Vinegar Hill '.

In December 1854 discontent with the licensing system on the goldfields led to the rising at the Eureka Stockade, one of only two armed rebellions in Australian history ( the other being the Castle Hill convict rebellion of 1804 ).

In 1804, Irish convicts led the Castle Hill Rebellion.

* Other buildings of interest include Isola restaurant, in John Street, and the Douglas Hotel, on the North Quay, both merchants ' houses from the mid-eighteenth century ; The Castle Mona ( formerly the Quality Hotel ), a magnificent seaside mansion built by John Murray, 4th Duke of Atholl in 1804, currently awaiting refurbishment ; and the Loch Promenade, a magnificent curving terrace of former boarding houses dating from the 1870s.

His eldest son, the fourth Earl, represented Castle Rising and Maidstone in the House of Commons, and after entering the House of Lords on his father's death, served as Captain of the Yeomen of the Guard from 1783 to 1804 and as Lord Steward of the Household from 1804 to 1812.

Australian colonists also used firearms in conflict with bushrangers ; in duels, the last in 1854 ; in armed rebellions, such as the Castle Hill convict rebellion in 1804 and the 1854 Eureka Stockade.

Late on the 4 March 1804, 266 Irish rebels revolted on a government farm at Castle Hill, armed themselves with muskets and pikes, and planned to sack Parramatta.

The Irish led Castle Hill Rebellion of 1804 alarmed the British authorities and Dixon's permission to celebrate Mass was revoked.

Whether or not the Castle Mill met with this fate, it was restored on 25 June 1804 by Napoleon to Count Philipp Franz von der Leyen ( d. 1829 ), and he later sold it – no later than 1820 – when the prince was getting rid of his last holdings on the Middle Rhine, only to acquire Schloss Waal ( a castle in Ostallgäu ) a few years later.

It was from here where Johnston marched with his troops to Castle Hill on 5 March 1804 to quell the convict revolt and where he rode on 26 January 1808 to arrest Governor Bligh during the Rum Rebellion.

The New South Wales Corps subsequently was involved in putting down a rebellion of Irish convicts at Castle Hill in 1804.

* Conway Castle, acquired c. 1804, was a 54-ton Irish Gun Vessel hired to fight in the Napoleonic Wars.

The Castle Hill Rebellion of 1804 was a rebellion by convicts against colonial authority in the Castle Hill area of the British colony of New South Wales.

On the evening of 4 March 1804, a hut at Castle Hill was set afire as the signal for the rebellion to begin.

* The Castle Hill convict rebellion an 1804 convict rebellion in New South Wales, Australia, sometimes referred to as the second Battle of Vinegar Hill

It was completed in 1804 but a severe hurricane in September of that year virtually destroyed it, and a replacement brick and mortar castle structure was erected in 1809 – 1810 called " Castle Pinckney ".

Once in Australia, many of these prisoners continued to plan escapes from British military custody — for example, the 1804 Castle Hill convict rebellion, and continual tension on Norfolk Island in the same year also led to an Irish revolt.

On 4 March 1804, Irish convicts including political prisoners transported for participating in the Irish Rebellion of 1798, broke out of the Government Farm at Castle Hill, aiming to seize control of the area and to capture Parramatta.