Danish monarchy in the context of "King's Law"

Icelanders (Icelandic: Íslendingar) are an ethnic group and nation who are native to the island country of Iceland. They speak Icelandic, a North Germanic language.

Icelanders established the country of Iceland in mid 930 CE when the Alþingi (parliament) met for the first time. Iceland came under the reign of Norwegian, Swedish and Danish kings but regained full sovereignty from the Danish monarchy on 1 December 1918, when the Kingdom of Iceland was established. On 17 June 1944, Iceland became a republic. Lutheranism is the predominant religion. Historical and DNA records indicate that around 60 to 80 percent of the male settlers were of Norse origin (primarily from Western Norway) and a similar percentage of the women were of Gaelic stock from Ireland and peripheral Scotland.

There are 12 monarchies in the Americas, being either sovereign states or self-governing territories that have a monarch as head of state. Each is a constitutional monarchy, wherein the monarch inherits his or her office according to law, usually keeping it until death or abdication, and is bound by laws and customs in the exercise of their powers. Ten of these monarchies are part of the global personal union known as the Commonwealth realms and share Charles III, who resides in the United Kingdom, as king. The other two are the Monarchy of the Netherlands which is used in states of the Dutch Caribbean, and the Monarchy of Denmark which is used in Greenland. As such, none of the monarchies in the Americas have a permanently residing monarch, though the Commonwealth realms each have a resident governor-general to represent King Charles III and perform most of his constitutional duties in his name; and a high commissioner represents the King of Denmark and the Danish government in Greenland. Additionally, each of Canada's 10 provinces functions as a subnational constituent monarchy, with the constitutional powers vested in the King exercised at the provincial level by a lieutenant governor.

Historically, some pre-Columbian societies existed under monarchical forms of government, while others had a decentralised collection of tribal regions under a hereditary chieftain. None of the contemporary monarchies, however, are descended from those pre-colonial royal systems, instead either having their historical roots in European monarchies which colonized the New World beginning in the 15th century.

The Landgraviate of Hesse-Kassel (German: Landgrafschaft Hessen-Kassel), spelled Hesse-Cassel during its entire existence, also known as the Hessian Palatinate (German: Hessische Pfalz), was a state of the Holy Roman Empire. The state was created in 1567 when the Landgraviate of Hesse was divided upon the death of Philip I, Landgrave of Hesse. His eldest son William IV inherited the northern half of the Landgraviate and the capital of Kassel. The other sons received the Landgraviates of Hesse-Marburg, Hesse-Rheinfels and Hesse-Darmstadt.

During the Napoleonic reorganisation of the Empire in 1803, the Landgrave of Hesse-Kassel was elevated to an Electorate and Landgrave William IX became an Imperial Elector. Many members of the House of Hesse-Kassel served in the Danish military, gaining high ranks and power in the realm because many Landgraves were married to Danish princesses. Members of the family who are known to have served Denmark-Norway include Prince Frederik of Hesse-Kassel, Prince Frederick of Hesse-Kassel, and Prince Charles of Hesse-Kassel. It had two votes to the Reichstag: one for itself and one for Hersfeld Abbey.

The Danish–Icelandic Act of Union, an agreement signed by Iceland and Denmark on 1 December 1918, recognized Iceland as a fully independent and sovereign state, known as the Kingdom of Iceland, which was freely associated to Denmark in a personal union with the Danish king. Iceland established its own flag, declared its neutrality and asked Denmark to represent on its behalf foreign affairs and defense interests, while maintaining full control of them. Iceland opened its first embassy in 1920. The Act would be up for revision in 1940 and could be revoked three years later if agreement was not reached.