Question: After Emperor Sigismund, who was the next Emperor?
About the article "Austria", section "Middle Ages".

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In 535, Sigismund's remains were recovered from the well at Coulmiers and buried in the monastery at Agaune.
Eventually Sigismund was canonized.
Correspondence has survived between Sigismund and Avitus, who was a poet and one of the last masters of the classical arts.
In 1366, Charles IV, Holy Roman Emperor, transferred Sigismund's relics to Prague, hence he has become a patron saint of the Czech Republic.
The emperor gave the saint's name to one of his son, the later King Sigismund of Hungary (who also became decades later King of Bohemia and Holy Roman Emperor).
In 1424, Sigismund of Hungary constructed a church in the honor of Saint Sigismund in the City of Buda.
In 1424 King Sigismund took the reliques of Saint Sigismund from Prague and sent them to the Hungarian city of Varad, so they could be protected from the Hussites. 
Sigismund (variants: Sigmund, Siegmund) is a German proper name, meaning "protection through victory", from Old High German "sigu" "victory" + "munt" "hand, protection".
Tacitus Latinises it "Segimundus".
There appears to be an older form of the High German word "Sieg" (victory): "sigis", obviously Gothic and an inferred Germanic form, and there is a younger form: "sigi", which is Old Saxon or Old High German "sigu" (both from about 9th century).
A 5th century Prince of Burgundy was known both as "Sigismund" and "Sigimund" (see Ernst Förstemann, "Altdeutsche Personennamen", 1906; Henning Kaufmann, "Altdeutsche Personennamen", Ergänzungsband,1968).
A Lithuanian name Žygimantas, meaning "wealth of (military) campaign", from Lithuanian "žygis" "campaign, march" + "manta" "goods, wealth" has been a substitution of the name "Sigismund" in the Lithuanian language, from which it was adopted by the Ruthenian language as Жыгімонт (such are the cases of Sigismund Kestutaitis, Sigismund Korybut, Sigismund I the Old, Sigismund II Augustus).
The Polish spelling is Zygmunt.
Segismundo, 21st century hero of the dramatic novel "United States of Banana" by Giannina Braschi, based on Calderón de la Barca's Life is a Dream.
Sigismund, a character from the Warhammer 40,000 game series, First Captain of the Imperial Fists Legion and later founder and first High Marshall of the Black Templars Chapter  Sigismund (bell), a famous bell in the Wawel Cathedral in Kraków, cast in 1520  Siegmund, a focal character in Richard Wagner's "Die Walküre"  "Wilhelm Gottsreich Sigismond von Ormstein, Grand Duke of Cassel-Felstein", fictional King of Bohemia in "A Scandal in Bohemia" (Sherlock Holmes adventure)  Sigismund the mad maths teacher, a character in the Nigel Molesworth school stories  
The son of King Casimir IV Jagiellon and Elisabeth of Austria, Sigismund followed his brothers John I of Poland and Alexander I of Poland to the Polish throne.
Their elder brother Vladislaus II of Bohemia and Hungary became king of Hungary and Bohemia.
Sigismund was christened as the namesake of his mother's maternal grandfather, Holy Roman Emperor Sigismund, who had died in 1437. 
Sigismund was known to speak fluent Hungarian, wore Hungarian style royal clothes and even grew his beard as the Hungarians.
He also spent huge amounts of money during his reign to rebuild the Gothic castles of Buda and Visegrád in the Kingdom of Hungary, ordering the transportation of materials from Austria and Bohemia.
His many affairs with women led to the birth of several legends, as the one that existed decades later during the reign of the King Matthias Corvinus of Hungary.
According to this, John Hunyadi was Sigismund's illegitimate son.
Sigismund gave a ring to the boy's mother when he was born, but one day in the forest a raven stole it from her, and the ring was only recovered after the bird was hunted down.
It is said that this incident inspired the coat of arms of the Hunyadis, and later also appeared in the coat of arms of Matthias "Corvinus".
Sigismund adopted the Hungarian reverence for Saint Ladislaus I of Hungary, who was considered to be an ideal Christian knight at that time.
He went on pilgrimage several times to his tomb in Nagyvárad.
Before Sigismund died, he ordered to be buried next to the king saint. 
A Franco-Polish alliance was formed in 1524 between the king of France Francis I and the king of Poland Sigismund I. Francis I was looking for allies in Central Europe, in order to create a balance against the power of Habsburg Emperor Charles V. Queen Bona Sforza, the Italian wife of Sigismund, was instrumental in promoting the alliance, with the objective of recovering sovereignty of Milan.
Sigismund himself was motivated by such an alliance because Charles V was getting closer to Russia, thus threatening Poland on two fronts.
The negotiations were handled by Antonio Rincon in 1524, who was then followed by Jerome Laski.
Through the agreement, the son of Francis, Henry, Duke of Orléans, was to marry a daughter of Sigismund I, and Sigismund's eldest son was to marry a daughter of Francis I.
According to the same agreement, Sigismund was supposed to support Francis' efforts at reconquering Milan, to which Sigismund had some right through his earlier marriage with Bona Sforza.
The alliance was effectively signed in 1524.
The agreement fell through however when Francis I was vanquished by Charles V at the Battle of Pavia in 1525.
When Francis again looked for Central European allies after 1526, he would look at Hungary instead, finally forming a Franco-Hungarian alliance with King Zapolya in 1528.