Editing 1623 (section)

=== January&ndash;March ===
* [[January 21]]
**[[Henry Cary, 1st Viscount Falkland|Viscount Falkland]], England's [[Lord Deputy of Ireland]], issues a proclamation ordering all Roman Catholic priests to leave Ireland, affecting negotiations over the "[[Spanish match]]" (which resume in March).
**[[Voyage of the Pera and Arnhem to Australia in 1623|Voyage of the ''Pera'' and ''Arnhem'' to Australia]]: Captains [[Jan Carstenszoon]] of the ''Arnhem'' and Willem Joosten van Coolsteerdt of the ''Pera'' depart on an expedition for the [[Dutch East India Company]] from [[Ambon, Maluku]] (Amboyna) to explore the Australian coast.  
* [[January]] &ndash; [[Battle of Mbanda Kasi]]: Forces from the [[Kingdom of Kongo]] defeat the [[Portuguese Empire|Portuguese]].
*[[February 7]] &ndash; France, [[Savoy]] and [[Venice]] sign the [[Treaty of Paris (1623)|Treaty of Paris]], agreeing to cooperate in removing Spanish forces from the strategic Alpine pass of [[Valtelline]].<ref>Geoffrey Parker, ''The Thirty Years' War'' (Taylor & Francis, 2006) p. 59</ref>
* [[February 25]] &ndash; [[Thirty Years' War]]: Duke [[Maximilian I, Elector of Bavaria|Maximilian I of Bavaria]] becomes [[Prince-elector|Elector]] of the [[Electorate of the Palatinate]].
* [[March 5]] &ndash; The first [[American temperance law]] is enacted, in [[Virginia]].
* [[March 7]] &ndash; Charles, Prince of Wales, the future King [[Charles I of England]], travelling incognito with royal favourite [[George Villiers, 1st Duke of Buckingham|George Villiers]], arrives in [[Madrid]] to pursue negotiations over the "[[Spanish match]]", the Protestant Charles's proposed marriage with the Catholic Habsburg ''[[Infanta]]'' [[Maria Anna of Spain]].
* [[March 9]] &ndash; [[Amboyna massacre]]: Ten English merchants in the service of the [[British East India Company]], together with nine Japanese and one Portuguese, are executed by agents of the [[Dutch East India Company]] in [[Ambon, Maluku]] (Amboyna).
* [[March 14]] &ndash; In the Korean [[kingdom of Joseon]], [[Deposed Crown Prince Yi Ji|Crown Prince Yi Ji]] is deposed and exiled to [[Ganghwa Island]], where he dies soon after. 
* [[March 20]] &ndash; [[Richard Frethorne]] begins writing a letter to his parents from [[Jamestown, Virginia]].