1448

January–December

• January 6 - Christopher of Bavaria, King of Denmark, Norway and Sweden, dies with no designated heir, leaving all three kingdoms with vacant thrones. Brothers Bengt Jönsson Oxenstierna and Nils Jönsson Oxenstierna are selected to serve as co-regents of Sweden.
• August 14 - Battle of Oronichea: Albania is victorious over Venice.
• June 20 - The Regency period of Sweden ends with the election of Karl Knutsson Bonde, as King Charles VIII of Sweden.
• June 28 - Charles VIII of Sweden is publicly hailed as king at Mora Stones, and is crowned in Uppsala Cathedral the following day.
• September 28 - Christian of Oldenburg, betrothed to Queen Dowager Dorothea of Brandenburg, becomes King Christian I of Denmark.
• October 4 - Peace between Albania and Venice is established.
• October 17 - Battle of Kosovo: Hungarian forces under John Hunyadi are defeated by the Turks, due to Ottoman superiority.
• December - Jonas, a Russian bishop, is installed by the Council of Russian Bishops in Moscow, as Metropolitan of Kiev and All Rus; as this is without the consent of the Patriarch of Constantinople, it signifies the beginning of an effectively independent church structure in the Grand Duchy of Moscow.

  Date unknown

• Queens' College, Cambridge is founded by Margaret of Anjou.
• The Vatican Library is founded by Pope Nicholas V.
• Vlad III the Impaler becomes reigning Prince of Wallachia for two months, before being deposed by Vladislav II.
• After a long episode of drought, flood, locust infestation, and famine in Ming Dynasty China since the year 1434, these natural afflictions finally wane, and agriculture and commerce return to a state of normality.
• Roman II flees to Poland, when an army sent by John Hunyadi, and led by Csupor de Monoszló, comes to put Petru on the throne of Moldavia. Petru dies suddenly, and Csupor takes on the throne for two months, as Ciubăr Vodă.