The bishops and secular leaders, tired of the Great Schism, supported Sigismund when he called the Council of Constance in 1414.

In the diplomatic struggle to prevent war between Poland-Lithuania, which was supported by the Russians, and the Teutonic Knights, Sigismund used Stibors fine diplomacy to gain financially.

Partially in order to pacify the restless szlachta, Sigismund supported war with Muscovy ( the Dimitriads, 1608 – 1618 ).

Zápolya was initially supported by King Sigismund of Poland, his mother's father, but in 1543 a treaty was signed between the Habsburgs and the Polish ruler as a result of which Poland became neutral in the conflict.

The association supported King Sigismund in the Hussite Wars leading to armed attacks and devastations.

For instance, Michael I ( 1418 – 1420 ) was overthrown by his cousin, Dan II ( 1420 – 1431 ), and in the next decade the throne was occupied with frequent changes either by Dan II or by his cousin, Radu II the Bald ( 1421 – 1427 ), the former being supported by Sigismund I of Hungary and the latter by the Ottomans.

The death of John II Sigismund in 1571 threatened to throw the country again into the hands of the Habsburgs whose officers supported the Unitarian Gáspár Bekes.

The peace was sealed, probably in 1387, with the marriage of Lazar's daughter Teodora to Nicholas II Garay, a powerful Hungarian noble who supported Sigismund.

The union was strongly supported by the King of Poland and Grand Duke of Lithuania, Sigismund III Vasa, but opposed by some bishops and prominent nobles of Rus, and perhaps most importantly, by the nascent Cossack movement for Ukrainian self-rule.

In Sweden, crypto-Calvinism, which was resisted by Archbishop Olaus Martini, was supported by Duke Charles, uncle of Catholic king Sigismund III Vasa.

It all finished with a lot of people being jailed, among them Archbishop Abraham Angermannus, who had supported Sigismund.

The consequences for those who had supported Sigismund were devastating.

Troops under Axel Kurck, supporting king Sigismund were defeated by troops supported duke Karl, soon to be king Karl IX.

They supported Sigismund III Vasa, who refused to accept defeat and still laid claim to the Russian throne.

The events can also be seen as a part of a larger power struggle between King Sigismund, whom Fleming powerfully supported, and Duke Charles, who expressed sympathy for the peasants ' cause but was unable to intervene militarily.

It is unclear what groups supported Sigismund and why.

Sigismund, who did not play a major role in Lithuanian politics before the coup and who initially supported Švitrigaila, became the Grand Duke and resumed policy of union with Poland.

In 1440 Sigismund Kęstutaitis was assassinated by nobles who supported Švitrigaila, and Švitrigaila returned to rule Podolia and Volhynia.

In 1516, he was the co-author, together with Copernicus, of a letter to the Polish King Sigismund I the Old asking for the King's protection of Prussia against the Teutonic Knights, and generally supported the interests of the Polish Crown against that of the Teutonic Order.

After a series of indecisive skirmishes his invasion was cut short due to the death of Vaytautas, which forced Olugh to concentrate his forces on Lithuania, where he supported Sigismund I Kestutian against Svitrigaila in the fight for the Lithuanian throne.

However, Sigismund, supported by some of the more devout szlachta, was completely opposed to the conversion of the prince.

He became an adviser of Sigismund III Vasa and supported his plans to take over the Muscovite throne.

Because the German townspeople supported King Sigismund during the Hussite Wars, Brod was sacked on 22 January 1422 by Jan Žižka.

He supported military expeditions of Sigismund Korybut to Bohemia in the years 1422-1427, supporting the pro-Hussite intervention.

Albert was chosen as his successor early in 1511 in the hope that his relationship to his maternal uncle, Sigismund I the Old, Grand Duke of Lithuania and King of Poland, would facilitate a settlement of the disputes over eastern Prussia, which had been held by the Order under Polish suzerainty since the Second Peace of Thorn ( 1466 ).

After some delay Sigismund assented to the offer, with the provision that Prussia should be treated as a Polish fiefdom ; and after this arrangement had been confirmed by a treaty concluded at Kraków, Albert pledged a personal oath to Sigismund I and was invested with the duchy for himself and his heirs on 10 February 1525.

He was next sent by the Pope to the Emperor Sigismund to ask his aid in the pope's efforts to end this Council, which for five years had been encroaching on papal prerogatives.

File: Herma of Saint Sigismund in Płock Cathedral. PNG | Herma of Saint Sigismund of Burgundy, founded by the King for Płock Cathedral

The legates were received by King Sigismund and by the assembled Bishops, and the King yielded the presidency of the proceedings to the papal legates, Cardinal Dominici of Ragusa and Prince Charles of Malatesta.

* 1408 – The Order of the Dragon a monarchical chivalric order is created by Sigismund of Luxembourg, then King of Hungary.

( The Council of Constance was called by the German King and later Holy Roman Emperor Sigismund and only obtained papal confirmation later.

The first seven councils were called by the Byzantine Emperors and the sixteenth by the future Holy Roman Emperor Sigismund.

On 14 February 1479 at Frankfurt ( Oder ) he was married to Sophia of Poland ( 6 April 1464-5 October 1512 ), daughter of King Casimir IV of Poland by his wife Elisabeth of Habsburg, and sister of King Sigismund I of Poland.

King Wenceslaus, prompted by his grudge against Sigismund, at first gave free vent to his indignation at the course of events in Constance ; and his wife openly favored the friends of Huss.

Pope Martin V, who while still Cardinal Otto of Colonna, had attacked Huss with relentless severity, energetically resumed the battle against Huss's teaching after the enactments of the Council of Constance, seeking to eradicate completely the doctrine of Huss, for which purpose the co-operation of King Wenceslaus had to be obtained ; in 1418, Sigismund succeeded in winning his brother over to the standpoint of the council by pointing out the inevitability of a religious war if the heretics in Bohemia found further protection.

Sigismund could get possession of his kingdom only by force of arms.

Joachim Frederick was succeeded at his death by his son John Sigismund.

* the Order of the Dragon, founded by King Sigismund of Luxemburg in 1408

* 524 – King Sigismund of Burgundy is executed at Orléans after an 8-year reign and is succeeded by his brother Godomar.

* 1416 – The Council of Constance, called by the Emperor Sigismund, a supporter of Antipope John XXIII, burns Jerome of Prague following a trial for heresy.

In April, Sigismund was brought to Hungary by his brother Wenceslaus and the queens were compelled to accept him as Mary's co-ruler by a treaty signed in Győr.

The Pope on 12 July 1420 conceded indulgence to any who would contribute to a crusade against the latter, which would be led by Sigismund, King of the Romans.

Facilitated by the Pope, a treaty of alliance was signed in Prague by Emperor Rudolf II and Sigismund Báthory of Transylvania.