FTP, name this work that was first produced in 1941, a play by Bertolt Brecht.
One of the three major sources for this work is a ballad from Runeberg's Songs of Ensign Stal about Lotta Svard, while another is the novel The Runagate Courage.  One scene opens with one of the title characters singing "The Song of the Great Capitulation," while another features the successful sale of a capon.  In the end, three of the four title characters are killed, as Kattrin is shot while beating an alarm on the roof of a farmhouse, Eilif is executed in retribution for his brutality to peasants, and Swiss Cheese dies after refusing to give up his regiment's cash-box.  The twelve scenes of the play cover a period between 1624 and 1636, during which the first title character follows the Protestant armies of the Thirty Years War.  FTP, name this work that was first produced in 1941, a play by Bertolt Brecht.
One of the three major sources for this work is a ballad from Runeberg's Songs of Ensign Stal about Lotta Svard, while another is the novel The Runagate Courage.  
Mother Courage and her Children or Mutter Courage und ihre Kinder