* 1454 – The Treaty of Lodi is signed, establishing a balance of power among northern Italian city-states for almost 50 years.

Early sources: river Ilfing ( 890 ), Castrum de Elbingo quod a nomine fluminis Elbingum appellavit ( 1237 — Peter of Dusburg, Chronicon terrae Prussiae ), in Elbingo ( 1239 ), in Elbing ( 1242 ), in Elbinge ... fluvium Elbinc ( 1246, city charter ), de Elbingo ( 1250 ), in Elbyngo ( 1258 ), vitra Elbingum ( 1263 ), Elvingo ( 1293 ), in Elbingo ( 1300 ), in Elvingo ( 1389 ), czum Elbinge ( 1392 ), czu Elbing ( 1403 ), Elwing ( 1410 ), czum Elwinge ( 1412 ), Elbing ( 1414 – 1438 ), Elbyang ( before 1454 ), Elbing ( 1508 ), ku Elbiągowi ( 1634 ), w Elblągu ( 1661 ), w Elblągu ( 1661 ).

* 1454 – In the Thirteen Years ' War, the Secret Council of the Prussian Confederation sends a formal act of disobedience to the Grand Master.

Detail of " Aeneas Piccolomini Introduces Eleonora of Portugal to Frederick III " by Pinturicchio ( 1454 – 1513 )

The name of a settlement was recorded after St. Adalbert's death in 997 AD as urbs Gyddanyzc and later was written as Kdanzk ( 1148 ), Gdanzc ( 1188 ), Danceke ( 1228 ), Gdansk ( 1236, 1454, 1468, 1484, 1590 ), Danzc ( 1263 ), Danczk ( 1311, 1399, 1410, 1414 – 1438 ), Danczik ( 1399, 1410, 1414 ), Danczig ( 1414 ), Gdąnsk ( 1636 ).

One of the profit-making enterprises of the new press was the printing of thousands of indulgences for the church, documented from 1454 – 55.

* 1405 – King John II of Castile ( d. 1454 )

* 1454 – Queen Catherine Cornaro of Cyprus ( d. 1510 )

Around 1447 – 1454 he painted Scenes of Monastic Life for the church San Miniato al Monte, Florence.

* Scenes of Monastic Life ( c. 1447 – 1454 ) -

Pius II also tried mediation in the Thirteen Years ' War of 1454 – 66 between Poland and the Teutonic Knights, but, when he failed to achieve success, cast an anathema over Polish and Prussians both.

* 1454 – In the Battle of Chojnice, the Polish army is defeated by the Teutonic army during the Thirteen Years ' War.

* 1454 – 1466: After defeating the Teutonic Knights in the Thirteen Years ' War, Poland annexes Royal Prussia.

* date unknown – Robert Wingfield, English politician ( d. 1454 )

* February 22 – Amerigo Vespucci, Italian merchant and cartographer, discoverer of the New World ( b. 1454 )

* November 2 – Henry Stafford, 2nd Duke of Buckingham, English politician ( b. 1454 )

* March 6 – King John II of Castile ( d. 1454 )

* June 14 – Ermolao Barbaro, Italian scholar ( b. 1454 )

* July 10 – Catherine Cornaro, Queen of Cyprus ( b. 1454 )

* August – Domenico Maria Novara da Ferrara, Italian astronomer ( b. 1454 )

# Magdalene ( c. 1412 – 27 October 1454, Scharnebeck ), married:

* John of Brandenburg ( 1452 – 1454 )

* September 24 – Poliziano, Italian humanist ( b. 1454 )

* February 28 – Ch ' oe Pu ( 1454 – 1504 ), the Korean Commissioner of Registers for the island of Cheju, shipwrecks on the southeast coast of China in Taizhou, Zhejiang, during the Ming Dynasty.

* 1454 ; Thirteen Years ' War started.

In 1440, the gentry of Thorn formed the Prussian Confederation, and in 1454 rose with the Confederation against the Monastic state of the Teutonic Knights in the Thirteen Years ' War.

It rebelled against the Teutonic Knights in 1454 upon the outbreak of the Thirteen Years ' War and requested protection from the Polish Crown.

The treaty concluded the Thirteen Years ' War ( 1454 – 1466 ) which had begun in February 1454 with the revolt of the Prussian Confederation, led by the cities of Danzig ( Gdańsk ), Elbing ( Elbląg ), Kulm ( Chełmno ) and Thorn, and the Prussian gentry against the rule of the Teutonic Knights in the Monastic State.

During the Thirteen Years ' War (" War of the Cities "), in February 1454, the Confederation, led by the citizens of Gdańsk, Elbląg, and Toruń, as well as gentry from Chełmno Land sent a delegation with Johannes von Baysen to ask the Polish king for support against the Teutonic Order's rule and for incorporation of Prussia into the Polish kingdom.

It took an active part in the 1454 uprising against the Teutonic Order that led to the Thirteen Years ' War ( 1454 – 66 ).

In 1454 after the outbreak of the Thirteen Years ' War, troops from Danzig ( Gdańsk ) occupied Lauenburg and Bütow ( Bytów ); the following year they were turned over to Eric II, Duke of Pomerania, to form an alliance.

After the Thirteen Years ' War ( 1454 – 66 ) that resulted wit the Second Peace of Thorn ( 1466 ), Pomerelia became part of the Polish province of Royal Prussia and reamained as part of Poland until 1772, with a degree of autonomy until 1569.

Bartenstein sided with the Prussian Confederation during the Thirteen Years ' War ( 1454 – 66 ).

During the Thirteen Years ' War ( 1454 – 1466 ), Osterode was repeatedly captured by both the Poles and Prussian Confederation on one side and the Teutonic Knights on the other.

During Thirteen Years ' War ( Wojna trzynastoletnia ) ( 1454 – 1466 ) still against Teutonic Order there was a common recruitment in Poland in 1458.

# REDIRECT Thirteen Years ' War ( 1454 – 66 )

At the end of the Thirteen Years ' War ( 1454 – 1466 ), however, Tuchel was ceded to Poland in the Second Peace of Thorn and became part of Polish Royal Prussia.

With Lauenburg Land it became a Polish fief during the Thirteen Years ' War in 1454, held by the Dukes of Pomerania.

The Prussian Confederation then supported seceding from the Monastic state in 1454, triggering the civil war amongst different factions in Prussia resulting in Thirteen Years ' War.

As other members of the Prussian Confederation, Kneiphof rebelled against the Teutonic Knights in 1454 at the beginning of the Thirteen Years ' War and allied with King Casimir IV Jagiellon of Poland, who did not provide assistance.

In time, pospolite ruszenie became increasingly amateurish and inefficient when compared to professional soldiers ; Bardach notes that this process can be seen as early as the Thirteen Years ' War ( 1454 – 66 ).

In the Thirteen Years ' War ( 1454 – 1466 ), the towns of the Prussian Confederation in Pomerelia and the adjacent Prussian region east of the Vistula River rebelled against the rule of the Teutonic Knights and sought the assistance of King Casimir IV Jagiellon of Poland.