""Gertrude and Beatrice; Or The Queen of Hungary"" is a historical tragedy written by George Stephens. The play is set in 13th century Hungary and tells the story of two sisters, Gertrude and Beatrice, who are vying for the throne of Hungary after the death of their father, King Andrew II. Gertrude, the elder sister, is married to the Duke of Austria and has the support of the Austrian army, while Beatrice has the support of the Hungarian nobility...