Alexander Jagiellon (Polish:Aleksander Jagiellończyk;Lithuanian:Aleksandras Jogailaitis; 5 August 1461 – 19 August 1506) wasGrand Duke of Lithuania from 1492 andKing of Poland from 1501 until his death in 1506.^[2] He was the fourth son ofCasimir IV and a member of theJagiellonian dynasty. Alexander was elected grand duke of Lithuania upon the death of his father and became king of Poland upon the death of his elder brotherJohn I Albert.

Alexander Jagiellon
As king of the Saracens, probably the most accurate portrait of Alexander,c. 1504[1]
Grand Duke of Lithuania
Reign	30 July 1492 – 19 August 1506
Coronation	30 July 1492 inVilnius Cathedral
Predecessor	Casimir IV Jagiellon
Successor	Sigismund I the Old
King of Poland
Reign	12 December 1501 – 19 August 1506
Coronation	12 December 1501 inWawel Cathedral
Predecessor	John I Albert
Successor	Sigismund I the Old
Born	5 August 1461 Kraków, Poland
Died	19 August 1506(1506-08-19) (aged 45) Vilnius, Lithuania
Burial	Vilnius Cathedral,Vilnius,Lithuania (1506)
Spouse	Helena of Moscow
Dynasty	Jagiellon
Father	Casimir IV Jagiellon
Mother	Elisabeth of Hungary
Signature

Alexander was born as the fourth son of KingCasimir IV Jagiellon andElizabeth of Austria, daughter of the KingAlbert II of Germany. At the time of his father's death in 1492, his eldest brotherVladislaus had already becomeking of Bohemia (1471) andHungary andCroatia (1490), and the next oldest brother,Saint Casimir, had died (1484) after leading an ascetic and pious life in his final years, resulting in his eventual canonization. While the third oldest brother,John I Albert was chosen by the Polish nobility (szlachta) to be the next king of Poland, the Lithuanians instead elected Alexander to be their nextgrand duke. Alexander maintained a Lithuanian court and multiple Lithuanian priests served in his royal chapel of the Polishroyal court.^[3][4][5]

The greatest challenge that Alexander faced upon assuming control of the grand duchy wasan attack on Lithuania by Grand DukeIvan III of Russia and his allies, theCrimean Khanate'sTatars, which commenced shortly after his accession. Ivan III considered himself the heir to the lands ofKievan Rus', and was striving to take back the territory previously gained by Lithuania.^[6] Unable to successfully stop the incursions, Alexander sent a delegation to Moscow to make a peace settlement, which was signed in 1494 and ceded extensive land over to Ivan. In an additional effort to instill a peace between the two countries, Alexander was betrothed toHelena, the daughter of Ivan III; they were married inVilnius on 15 February 1495. The peace did not last long, however, as Ivan III resumed hostilities in 1500. The most Alexander could do was to garrisonSmolensk and other strongholds and employ his wife Helena to mediate another truce between him and her father after the disastrousBattle of Vedrosha (1500). In the terms of this truce, which was concluded on 25 March 1503, Lithuania had to surrender about a third of its territory to the nascent expansionist Russian state; Alexander pledged not to touch lands including Moscow, Novgorod, Ryazan, and others, while a total of 19 cities were ceded.^[7] HistorianEdvardas Gudavičius said:

"The war of 1492–1494 was a kind of reconnaissance mission conducted by the united Russia. [The terms of] the ceasefire of 1503 showed the planned political aggression of Russia, its undoubted military superiority. The concept of the sovereign of all Russia, put forward by Ivan III, did not leave room for the existence of the Lithuanian state".^[7]

On 17 June 1501, Alexander's older brother John I Albert died suddenly, and Alexander was crowned king of Poland on 12 December of that year. Alexander's shortage of funds immediately made him subservient to thePolish Senate andszlachta, who deprived him of control of the mint (then one of the most lucrative sources of revenue for the Polish kings), curtailed his prerogatives, and generally endeavored to reduce him to a subordinate position. In 1505, theSejm of the Kingdom of Poland passed the Act ofNihil novi, which forbade the king to issue laws without the consent of the nobility, represented by the two legislative chambers, except for laws governing royal cities, crown lands, mines, fiefdoms, royal peasants, and Jews. This was another step in Poland's progression towards a "Noble's Democracy".

During Alexander's reign, Poland suffered additional humiliation at the hands of her subject principality,Moldavia. Only the death ofStephen, the greathospodar of Moldavia, enabled Poland still to hold her own on theDanube river. Meanwhile, the liberality ofPope Julius II, who issued no fewer than 29 bulls in favor of Poland and granted AlexanderPeter's Pence and other financial help, enabled him to restrain somewhat the arrogance of theTeutonic Order.

Alexander Jagiellon never felt at home in Poland, and bestowed his favor principally upon his fellow Lithuanians, the most notable of whom was the wealthy Lithuanian magnateMichael Glinski, who justified his master's confidence by his great victory over the Tatars atKletsk (5 August 1506), news of which was brought to Alexander on his deathbed inVilnius.

According to Giedrė Mickūnaitė, interwar Lithuanian historians assumed that Alexander was the last ruler of theGediminid dynasty who understood theLithuanian language, yet did not speak it, but there is a lack of sources regarding that.^[8]

In 1931, during the refurbishment ofVilnius Cathedral, the forgotten sarcophagus of Alexander was discovered, and has since been put on display.

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  King Alexander inPolish Senate, 1506.
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  Alexander and hiskanclerzJan Łaski.
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  GothicSt. Anne's Church inVilnius was constructed on his initiative in 1495–1500.
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  In 1504 he ordered to rebuild theWawel in aRenaissance style.^[9]
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  Crown and sword of Alexander Jagiellon
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  Lithuanian coin with thecoat of arms of Lithuania andPoland
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  Seal of Alexander Jagiellon, 1504
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  Fantasy portrait byBacciarelli
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  Coat of arms
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  Sword of Alexander Jagiellon in 2023

• History of Poland during the Jagiellonian dynasty
• Rachela Fiszel
• Sejm walny
• St. Anne's Church, Vilnius

•   This article incorporates text from a publication now in thepublic domain: Chisholm, Hugh, ed. (1911). "Alexander (king of Poland)".Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 552.

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