World leaders in 1842
Everyone who held a state’s top posts at some point in 1842, in the order they held them. Names are from Wikipedia’s list of state leaders and appear only where the person’s Wikidata record agrees on the post and the years. What happened in 1842 →
Major powers in 1842
United StatesUnited States history
- President
- John Tyler
United KingdomUnited Kingdom history
- Queen
- Victoria
- Prime minister
- Robert Peel
Russian EmpireRussia history
- Emperor
- Nicholas I
Qing dynastyChina history
- Emperor
- Daoguang
July Monarchy of FranceFrance history
- King
- Louis Philippe I
- Prime minister
- Jean-de-Dieu Soult
Tokugawa shogunate of JapanJapan history
- Emperor
- Ninkō
Africa
BasutolandLesotho history
- King or Paramount Chief
- Moshoeshoe I
Beylik of TunisTunisia history
Ethiopian Empire
- Emperor
- Sahle Dengel
Khedivate of EgyptEgypt history
- Khedive
- Muhammad Ali
Kingdom of Eswatini (Swaziland)
- King
- Mswati II
Kingdom of Rwanda
Merina Kingdom
- Queen
- Ranavalona I
- Prime minister
- Rainiharo
Morocco: Alaouite dynasty
- Sultan
- Abd al-Rahman
Oyo EmpireNigeria history
- Alaafin
- Atiba Atobatele
Republic of MarylandLiberia history
- Governor
- John Brown Russwurm
Americas
Argentine ConfederationArgentina history
- Governor of Buenos Aires Province
- Juan Manuel de Rosas
Centralist Republic of MexicoMexico history
- Provisional President
- Santa Anna
- President
- Nicolás Bravo
Conservative Republic of ChileChile history
- President
- Manuel Bulnes
Empire of BrazilBrazil history
- Emperor
- Pedro II
Free State of Costa RicaCosta Rica history
- Head of State
- Braulio Carrillo Colina
HondurasHonduras history
- President
- Francisco Ferrera
Miskito CoastNicaragua history
Oriental Republic of UruguayUruguay history
- President
- Fructuoso Rivera
Republic of BoliviaBolivia history
- Provisional President
- José Ballivián
Republic of EcuadorEcuador history
- President
- Juan José Flores
Republic of Haiti (1820–1849)Haiti history
- President
- Jean-Pierre Boyer
Republic of New GranadaColombia history
- President
- Pedro Alcántara Herrán
Republic of PeruPeru history
- President
- Juan Crisóstomo Torrico
Republic of TexasUnited States history
- President
- Sam Houston
State of VenezuelaVenezuela history
- President
- José Antonio Páez
United StatesUnited States history
- President
- John Tyler
Asia
Aceh SultanateIndonesia history
Bruneian EmpireBrunei history
- Sultan
- Omar Ali Saifuddin II
Emirate of BukharaUzbekistan history
Emirate of NejdSaudi Arabia history
Johor SultanateIndonesia history
- Sultan
- Ali
Joseon
- King
- Heonjong
Kazakh KhanateKazakhstan history
- Khan
- Kenesary
Kedah SultanateMalaysia history
Kingdom of ChampasakLaos history
- King
- Nark
Konbaung dynasty
- King
- Tharrawaddy
Ottoman EmpireTurkey history
- Sultan
- Abdülmecid I
- Grand Vizier
- Topal Izzet Mehmed Pasha, then Mehmed Emin Rauf Pasha
Qing dynastyChina history
- Emperor
- Daoguang
Rattanakosin Kingdom of SiamThailand history
- King
- Rama III
Selangor SultanateMalaysia history
- Sultan
- Muhammad Shah
Sheikhdom of Abu DhabiUnited Arab Emirates history
Sheikhdom of AjmanUnited Arab Emirates history
Sheikhdom of DubaiUnited Arab Emirates history
Sheikhdom of KuwaitKuwait history
- Sheikh
- Jaber I
Sheikhdom of SharjahUnited Arab Emirates history
Sheikhdom of Umm Al QuwainUnited Arab Emirates history
Terengganu SultanateMalaysia history
- Sultan
- Omar Riayat Shah
Tokugawa shogunate of JapanJapan history
- Emperor
- Ninkō
Yemeni Zaidi StateYemen history
- Imam
- al-Hadi Muhammad
Yogyakarta SultanateIndonesia history
- Sultan
- Hamengkubuwono V
Europe
Andorra
- Episcopal Co-Prince
- Simó de Guardiola i Hortoneda
- French Co-Prince
- Louis Philippe I
Anhalt-Bernburg
- Duke
- Alexander Karl
Anhalt-Köthen
- Duke
- Henry V
BelgiumBelgium history
- King
- Leopold I
- Prime minister
- Jean-Baptiste Nothomb
Caucasian ImamateRussia history
- Imam
- Shamil
DenmarkDenmark history
- King
- Christian VIII
Duchy of Holstein
- Duke
- Christian VIII
Duchy of Nassau
- Duke
- Adolphe
Electorate of Brandenburg, Kingdom of Prussia
Grand Duchy of FinlandFinland history
- Grand Prince
- Nicholas I
July Monarchy of FranceFrance history
- King
- Louis Philippe I
- Prime minister
- Jean-de-Dieu Soult
Kingdom of Bavaria
- King
- Ludwig I
Kingdom of Bohemia
- King
- Ferdinand V
Kingdom of Croatia (Habsburg)Croatia history
- King
- Ferdinand V
Kingdom of Galicia and LodomeriaUkraine history
- King
- Ferdinand I
Kingdom of GreeceGreece history
- King
- Otto
Kingdom of Hanover
- King
- Ernest Augustus
Kingdom of Lombardy–VenetiaItaly history
- King
- Ferdinand I
Kingdom of PortugalPortugal history
- Queen
- Maria II
- King
- Ferdinand II
Kingdom of Sardinia, Duchy of SavoyItaly history
- King of Sardinia, Duke of Savoy
- Charles Albert
Kingdom of Spain (1810–1873)Spain history
- Queen
- Isabella II
Kingdom of the NetherlandsNetherlands history
- King
- William II
Kingdom of the Two SiciliesItaly history
- King
- Ferdinand II
Liechtenstein
- Prince
- Aloys II
LuxembourgLuxembourg history
- Grand Duke
- William II
MoldaviaRomania history
- Prince
- Mihail Sturdza
Papal States
- Pope
- Gregory XVI
Principality of Waldeck and Pyrmont
- Prince
- George II
Principality of WallachiaRomania history
- Prince
- Alexandru II Ghica
Russian EmpireRussia history
- Emperor
- Nicholas I
San Marino
- Pier Matteo Berti, Captains Regent
- Domenico Maria Belzoppi
Saxe-Meiningen
- Duke
- Bernhard II
Sweden–Norway
United Kingdom of Great Britain and IrelandUnited Kingdom history
- Queen
- Victoria
- Prime minister
- Robert Peel
Oceania
Kingdom of Huahine
- Queen
- Teriitaria II