Historedia
Person

Alexander I

Events
9
Episodes
21
Years
1801–1852

Every event in Historedia whose sources name Alexander I, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Tsar Paul I murdered; Alexander I succeeds

    1801

    Role: Emperor of Russia

    1. 23 March 1801 · Saint Michael's CastleAssassination at Saint Michael's Castle

      Dismissed officers murdered Paul I in his bedroom at Saint Michael's Castle on the night of 23 March 1801.

    2. 23 March 1801 · Russian EmpireAccession of Alexander I

      Alexander I succeeded Paul I as Emperor of Russia following the assassination on 23 March 1801.

  2. War of the Third Coalition: Ulm Campaign, Austerlitz and the Peace of Pressburg

    1805

    Role: Emperor of Russia

    1. 27 August 1805 · Boulogne-sur-MerRedirection of the Grande Armée

      Napoleon redirected his invasion force from Boulogne to the Rhine in August 1805 to confront Austrian and Russian threats.

    2. 14 October 1805 · ElchingenBattle of Elchingen

      Marshal Ney routed an Austrian corps led by Johann Sigismund Riesch near Elchingen.

    3. 16–20 October 1805 · UlmBattle of Ulm

      Napoleon trapped and forced the surrender of an entire Austrian army near Ulm.

    4. 11 November 1805 · DürnsteinBattle of Dürnstein

      French troops attempted to slow the retreat of a superior Russian and Austrian force.

    5. 16 November 1805 · SchöngrabernBattle of Schöngrabern

      Russian forces under Bagration delayed the French pursuit near Hollabrunn.

    6. 2 December 1805 · AusterlitzBattle of Austerlitz

      Napoleon decisively defeated a combined Austro-Russian force near Austerlitz.

    7. 26 December 1805 · Primate's Palace, PressburgPeace of Pressburg

      Austria signed the Peace of Pressburg, leaving the coalition and ceasing hostilities.

  3. Treaties of Tilsit signed

    1807

    Role: Russian Emperor

    1. 25 June 1807 · TilsitMeeting at Tilsit

      Napoleon and Alexander I met at Tilsit on 25 June 1807 to negotiate peace following the Battle of Friedland.

    2. 7 July 1807 · TilsitSigning of the First Treaty

      The first treaty was signed on 7 July 1807 between Napoleon and Alexander I on a raft in the Neman river.

    3. unknown · TilsitPrussian Terms

      Prussia agreed to reduce its army to 43,000 and pay tributes, with the sum later lowered to 120 million francs.

  4. Congress of Erfurt: Napoleon and Alexander I meet

    1808

    Role: Emperor of All Russia

    1. 27 September–14 October 1808 · ErfurtOpening of the Congress

      The Congress of Erfurt began on 27 September 1808, intended to reaffirm the alliance concluded the previous year with the Treaties of Tilsit.

  5. Diet of Porvoo: Finland's Estates pledge allegiance to Alexander I

    1809

    Role: Tsar of Russia and Grand Duke of Finland

    1. March 1809 · PorvooGuarantee of Rights

      Alexander I pledged to uphold Finland's fundamental laws, Lutheran religion, and estate privileges in exchange for allegiance.

    2. 29 March 1809 · Porvoo (Borgå)Opening of the Diet

      On 29 March 1809 the four Estates assembled in Porvoo and pledged allegiance to Alexander I, opening the Diet that established the Grand Duchy.

  6. University of Warsaw established

    1816

    Role: Tsar of Russia and King of Congress Poland

    1. 19 November 1816 · WarsawEstablishment of the University of Warsaw

      Tsar Alexander I authorized the creation of the University of Warsaw in 1816, defining its initial five academic departments.

  7. Execution of Ecumenical Patriarch Gregory V

    1821

    Role: Russian Emperor

    1. 22 April 1821 · Patriarchal Cathedral of St. GeorgeExecution at Patriarchal Cathedral

      Gregory V was hanged on 22 April 1821 on the Sultan's orders, after being seized following Easter liturgy, as reprisal for the Greek revolt.

  8. Nicholas I succeeds Alexander I as Emperor of Russia

    1825

    Role: Predecessor Emperor

    1. 1825 · RussiaSuccession Confusion

      Nicholas was caught between swearing allegiance to Constantine and accepting the throne for himself after Alexander's death.

    2. 19 November 1825 (Old Style) · TaganrogDeath of Alexander I

      Alexander I died of typhus in Taganrog on 19 November 1825 (Old Style) during a trip to southern Russia.

    3. 14 December 1825 (Old Style) · RussiaAccession of Nicholas I

      Nicholas began his reign on 14 December 1825 (Old Style), a Monday considered unlucky by Russian superstition.

  9. Helsinki Cathedral officially inaugurated

    1852

    Role: Decree Issuer

    1. 15 February 1852 · Senate SquareOfficial Inauguration

      The cathedral was officially inaugurated on 15 February 1852, concluding a construction period that began in 1830.

Sources

  1. Alexander I of Russia Wikipedia, revision of 2026-09-27
  2. War of the Third Coalition Wikipedia, revision of 2026-08-22
  3. Treaties of Tilsit Wikipedia, revision of 2026-05-10
  4. Congress of Erfurt Wikipedia, revision of 2025-06-12
  5. Diet of Porvoo Wikipedia, revision of 2026-09-23
  6. University of Warsaw Wikipedia, revision of 2026-09-19
  7. Greek War of Independence Wikipedia, revision of 2026-09-27
  8. Helsinki Cathedral Wikipedia, revision of 2026-10-02