Christian X of Denmark in the context of "George I of Greece"

Constitutional monarchy, also known as limited monarchy, parliamentary monarchy or democratic monarchy, is a form of monarchy in which the monarch exercises their authority in accordance with a constitution and is not alone in making decisions. Constitutional monarchies differ from absolute monarchies (in which a monarch is the only decision-maker) in that they are bound to exercise powers and authorities within limits prescribed by an established legal framework. A constitutional monarch in a parliamentary democracy is a hereditary symbolic head of state (who may be an emperor, king or queen, prince or grand duke) who mainly performs representative and civic roles but does not exercise executive or policy-making power.

Constitutional monarchies range from countries such as Liechtenstein, Monaco, Morocco, Jordan, Kuwait, Bahrain and Bhutan, where the constitution grants substantial discretionary powers to the sovereign, to countries such as the United Kingdom and other Commonwealth realms, the Netherlands, Spain, Belgium, Denmark, Norway, Sweden, Lesotho, Malaysia, Thailand, Cambodia, and Japan, where the monarch retains significantly less, if any, personal discretion in the exercise of their authority. On the surface level, this distinction may be hard to establish, with numerous liberal democracies restraining monarchic power in practice rather than written law, e.g., the constitution of the United Kingdom, which affords the monarch substantial, if limited, legislative and executive powers.

Name change is the legal act by a person of adopting a new name.

The procedures and ease of a name change vary between jurisdictions. In general, common law jurisdictions have looser procedures while civil law jurisdictions are more restrictive. While some civil law jurisdictions have loosened procedures, a few remain complicated.

Frederik IX (Christian Frederik Franz Michael Carl Valdemar Georg; 11 March 1899 – 14 January 1972) was King of Denmark from 1947 to 1972.

Frederik was born into the House of Glücksburg during the reign of his great-grandfather King Christian IX. He was the first child of Prince Christian of Denmark and Princess Alexandrine of Mecklenburg-Schwerin (later King Christian X and Queen Alexandrine). He became crown prince when his father succeeded as king in 1912. As a young man, he was educated at the Royal Danish Naval Academy. In 1935, he married Princess Ingrid of Sweden. They had three daughters: Margrethe, Benedikte and Anne-Marie. During Nazi Germany's occupation of Denmark, Frederik acted as regent on behalf of his father from 1942 until 1943.

The Danish Act of Succession, adopted on 5 June 1953, restricts the throne to those descended from Christian X and his wife, Alexandrine of Mecklenburg-Schwerin, through approved marriages. By a change in the law in 2009, succession is governed by absolute primogeniture.