Nielsen composed Kantate til Mindefesten i Anledning af 250-Aarsdagen for Stormen paa København to a text by L.C. Nielsen while he was working Kantate ved Aarhus Landsudstillings Aabnings-Højtidelighed 1909 (CNW 107). The cantata was performed in a grand ceremony at Copenhagen City Hall on 11 February 1909 as part of the commemoration of the 250th anniversary of the Storming of Copenhagen by the Swedish army. See more about this work at The Royal Library