III. Sigismund (Swedish: Sigismund Vasa, Polish: Zygmunt Waza, Mariefred, June 20, 1566 - Warsaw, April 30, 1632), Swedish royal prince from the House of Vasa, who was III. Sigismund, King of Sweden between 1592 and 1599, and King of Poland and Grand Duke of Lithuania from 1587 until his death. Sigismund III. He is the second-born child of King John of Sweden and Princess Katarina Jagiellon of Poland. His maternal uncle, II. Ágost Zsigmond was the last male member of the House of Jagiellon on the Polish throne. His spouse was Anna Habsburg, from whom he had his first offspring, Duke Konstantin Ulászló, and his later successor was Duke Kázmér János, born from his second wife Konstancia Habsburg. After the death of the Transylvanian prince István Báthory, on August 19, 1587 -I the young Zsigmond was elected king of the Polish orders. His aunt, Anna Jagielló, and Chancellor Jan Zamoyski also played a role in this decision. His coronation took place in Krakow on December 27, 1587. III. Sigismund became king of Poland, grand duke of Lithuania, and hereditary king of the Ruthenians, Prussians, Mazurians, Samogites, Livians, Swedes, Goths, and Vandals. During his reign, his extraordinary diplomatic skills and organizational skills made him the most influential European ruler of his time. III. Zsigmond died on April 30, 1632 in Warsaw. His resting place is in the Wawel Cathedral in Krakow.

III. King Sigismund of Poland ruled between 1587 and 1632. During his reign, Polish coinage developed significantly. The king introduced many new currencies and reformed the coinage system. The most commonly minted coins of the king were: Thaler: A silver coin that was the official currency of Poland. Thalers were minted at a number of different mints, including Krakow, Gdansk, Warsaw and Poznań. Grosz: A silver coin that, like the thaler, was the official currency of Poland. Grosses were usually minted at smaller mints than thalers. Bracken: A silver coin that was worth less than a gros. Brackens were commonly used in village markets. Kopejka: A silver coin that was even less valuable than the bracken. Copies were usually used for small purchases. III. The coinage of the Polish King Sigismund significantly contributed to the economic development of Poland. The king's new currencies facilitated trade and financial transactions.