Lady Inger of Ostrat (original title: Fru Inger til Østeraad) is an 1854 play by Henrik Ibsen, inspired by the life of Inger, Lady of Austraat. The play, the third work of the Norwegian's career, reflects the birth of Romantic Nationalism in the Norway of that period, and had a strongly anti-Danish sentiment. It centers on the Scandinavia of 1510–1540 as the Kalmar Union collapsed, the impacts of the Reformation were becoming evident in Norway, and a last desperate struggle was being mounted to maintain Norwegian independence. Its initial sentiments were so strongly anti-Danish that Ibsen ultimately toned them down.