Editing 1830 (section)

=== January–June ===
[[File:Lord Swaminarayan writing the Shikshapatri.jpg|thumb|right|110px|[[Swaminarayan]]]]
[[File:George IV 1821 color.jpg|thumb|right|110px|[[George IV of the United Kingdom|George IV]]]]
* [[January 7]]
** [[Thomas Lawrence]], English painter (b. [[1769]])
** [[John Thomas Campbell|John Campbell]], Australian public servant and politician (b. [[1770]])
** [[Carlota Joaquina of Spain]], [[Queen consort of Portugal]] (b. [[1775]])
* [[January 19]] – [[Johann Schweighäuser]], German classical scholar (b. [[1742]])
* [[January 25]] – [[Benito de Soto]], [[Galicia (Spain)|Galicia]]n pirate, executed (b. [[1805]])
* [[January 26]] – [[Filippo Castagna]], Maltese politician (b. [[1765]])<ref>{{cite book |last1=Schiavone |first1=Michael J. |title=Dictionary of Maltese Biographies Vol. 1 A–F |date=2009 |publisher=Pubblikazzjonijiet Indipendenza |location=[[Pietà, Malta|Pietà]] |isbn=9789993291329 |pages=546–547}}</ref>
* [[February 2]] – [[Manoel da Costa Ataíde]], Brazilian painter (b. [[1762]])
* [[February 22]] – [[William Badger (shipbuilder)|William Badger]], master shipbuilder (b. [[1752]])
* [[February 23]] – [[Jean-Pierre Norblin de La Gourdaine]] (Jan Piotr Norblin), French-born Polish painter (b. [[1740]])
* [[March 2]] – [[Samuel Thomas von Sömmerring]], German physician, anatomist (b. [[1755]])
* [[March 7]] – [[Jacques Villeré]], first Creole governor of Louisiana (b. [[1761]])
* [[March 16]] – [[Robert Townsend Farquhar|Sir Robert Farquhar]], British merchant, colonial governor and politician (b. [[1776]])
* [[March 17]] – [[Laurent de Gouvion Saint-Cyr]], French marshal (b. [[1764]])
* [[April 14]] – [[Erike Kirstine Kolstad]], Norwegian actress (b. [[1792]])
* [[June 1]] – [[Swaminarayan]] (Sahajanand Swami), Indian yogi, central figure in Swaminarayan Hinduism (b. [[1781]])
* [[June 4]] – [[Antonio José de Sucre]], Venezuelan revolutionary leader, statesman (b. [[1795]])
* [[June 26]] – King [[George IV of the United Kingdom]] (b. [[1762]])