for any sign of his good grace and favor, asks him not to forget her. Letters written to others, particularly those by her secretary, are similarly standard though she manages to include more honest and warm greetings and wishes. Initially, Sigismund Augustus lectured her on the proper use of the royal "we" after she sent letters with singular "I". She rarely writes about herself or politics. She often inquired about the recipients' health and wished them good health, trusting God and His good grace. Her correspondence with her brother was controlled by Sigismund Augustus; therefore she wrote several letters to him in secret from her husband. In popular culture Barbara's life and death have inspired legends, paintings, literary works and film. The popular legend of Pan Twardowski has that Faust-like figure summoning Barbara's ghost for King Sigismund August. In 1817 Alojzy Feliński wrote a tragedy, and in 1858 Antoni Edward Odyniec a drama, Barbara Radziwiłłówna. A 19th-century lithograph by Michał Kulesza depicting her with pearls is considered among the painter's notable works. In 1983 Janusz Majewski directed a film, Epitafium dla Barbary Radziwiłłówny (Epitaph for Barbara Radziwiłł) about Barbara's romance with King Sigismund August, her death and her posthumous return to Vilnius. Anna Dymna starred as Barbara, and Jerzy Zelnik as King Sigismund August. Barbara has also appeared as a major character in Królowa Bona (Queen Bona), TV series on Telewizja Polska. In Lithuania, two plays Barbora Radvilaitė were written, by Balys Sruoga in 1946 (unfinished) and Juozas Grušas in 1972. The latter was staged by the Kaunas State Drama Theater and directed by Jonas Jurašas. It was also turned into a film, directed by Vidmantas Bačiulis, in 1982. In 2012, musical Žygimanto Augusto ir Barboros Radvilaitės legenda by Anželika Cholina was described as the biggest and most expensive in Lithuania. The story of Barbara Radziwiłł served as an inspiration for the title track from the 2013 album Czornaja Panna by the Belarusian folkmetal band Litvintroll, a lyrical account of Sigismund's pain and grief after Barbara's death. The band claims the song not only to have given the name to the album but also to have "set its whole outline." On 6 October 2018, a musical titled "The Legend of Zygimantas Augustas and Barbora Radvilaite," was performed at the Auditorium Theater in Chicago. The musical was directed and choreographed by Anzelika Cholina, composed by Mantas Jankavicius, and the libretto was