id.loc.gov

Barbara Celjska, Empress, consort of Sigismund, Holy Roman Emperor, 1392-1451 - LC Linked Data Service: Authorities and Vocabularies | Library of Congress

found: http://en.wikipedia.org/wiki/Barbara_of_Cilli(Barbara of Cilli (also sometimes known as "Barbara of Celje") was the spouse of Holy Roman Emperor Sigismund and as such Holy Roman Empress)

found: Wikipedia, March 11, 2019(Barbara of Cilli; born 1392, Celje, County of Cilli (now Slovenia); died 11 July 1451, Mělník, Bohemia, Crown of Bohemia (now Czech Republic); daughter of Herman II, Count of Celje, and Countess Anna of Schaunberg; Holy Roman Empress and Queen of Hungary and Bohemia by marriage to Holy Roman Emperor Sigismund; spent most of her time on her Hungarian fiefdoms; served as regent of Hungary during Sigismund's absences in 1412, 1414, 1416 and 1418; crowned Queen of Hungary in 1408, Queen of Germany in 1414, Holy Roman Empress in 1433, and Queen of Bohemia in 1437, shortly before her husband's death; their daughter Elisabeth married King Albert II of Germany, an arch-rival; in exile at the Polish royal court 1438-1441, forced to relinquish most of her possessions; spent the rest of her life as Dowager Queen in Bohemia; died of the plague epidemic)