1374 – Saint Jadwiga or Queen Jadwiga born on the 18th of February. She was a Polish monarch who reigned and is venerated by the Roman Catholic Church as Saint Hedwig (Jadwiga) the Queen. She is the Patron Saint of queens, and of United Europe.
1384 – 1399 – Reigned as Polish Queen.
1386 – Married Jagiello, grand duke of Lithuania, in order to unite Poland and Lithuania and to convert the Lithuanians to Christianity.
1397 – She founded a theological college in Kraków and effected the restoration of the University of Kraków. She is nationally venerated as a saint.
1399 – On the 22nd of June, She gave birth to a daughter, baptized Elizabeth Bonifacia. Within a month, both the girl and her mother had died from birth complications. They were buried together in Wawel Cathedral.