Erik Julius Christian Scavenius was the Danish foreign minister from 1909 to 1910, 1913 to 1920 and 1940 to 1943, and prime minister from 1942 to 1943, during the occupation of Denmark until the Danish elected government ceased to function. He was the foreign minister during some of the most important periods of Denmark's modern history, including the First World War, the plebiscites over the return of northern Schleswig to Denmark, and the German occupation. Scavenius was a member of the Landsting from 1918 to 1920 and from 1925 to 1927 representing the Social Liberal Party. He was chairman of its party organization from 1922 to 1924.

The prime minister of Denmark is the head of government in the Kingdom of Denmark comprising the three constituent countries: Denmark, Greenland and the Faroe Islands. Before the creation of the modern office, the kingdom did not initially have a head of government separate from its head of state, namely the monarch, in whom the executive authority was vested. The Constitution of 1849 established a constitutional monarchy by limiting the powers of the monarch and creating the office of premierminister. The inaugural holder of the office was Adam Wilhelm Moltke.