Barbara Radziwiłł

Barbara Radziwiłł (Polish: Barbara Radziwiłłówna, Lithuanian: Barbora Radvilaitė; 6 December 1520/23 – 8 May 1551) was Queen of Poland and Grand Duchess of Lithuania as the second wife of Sigismund II Augustus, the last male monarch of the Jagiellon dynasty. Barbara, already widowed and considered a great beauty, became a royal mistress most likely in 1543 and married Sigismund in secret in July or August 1547. The marriage caused a scandal and was vehemently opposed by Polish nobles, including the queen mother, Bona Sforza.

Sigismund Augustus, with the support of Barbara's cousin Mikołaj Radziwiłł the Black and her brother Mikołaj Radziwiłł the Red, worked tirelessly to gain recognition for their marriage and to crown Barbara as Queen of Poland. Their efforts succeeded, and her coronation was held on 7 December 1550 at Wawel Cathedral. However, her health was already deteriorating, and she died just five months later. Despite the brevity of her reign, Barbara's marriage propelled the Radziwiłł family to new heights of political power and influence.

Contemporaries of the time generally viewed Barbara in a negative light, accusing her of promiscuity and witchcraft. Her life became surrounded by rumors and legends, and she emerged as a heroine in many literary works. From the 18th century onward, Barbara's life was romanticized as a great tragic love story, often portraying Bona Sforza as the chief antagonist. This narrative captured the public imagination and inspired numerous poems, plays, films, and other works, making Barbara Radziwiłł one of the best-known and most recognized women in the history of the Grand Duchy of Lithuania and the Kingdom of Poland.