Monarchy

A monarchy was a form of government with a hereditary ruler in charge.

Earth had many monarchic states. England, (TV: The Day of the Doctor) Scotland, (TV: Tooth and Claw) Great Britain, (TV: The Highlanders) the United Kingdom, (TV: Voyage of the Damned) France, (TV: The Girl in the Fireplace) Spain, (AUDIO: The Marian Conspiracy) Germany, (PROSE: Revenge of the Judoon) Prussia, (PROSE: The Book of the War) Austria, (AUDIO: The Silver Turk) Denmark, (PROSE: The Real Hereward) Sweden, (TV: The Vampires of Venice) Norway, (TV: "The Watcher") Russia, (PROSE: The Adventuress of Henrietta Street) Egypt, (TV: Dinosaurs on a Spaceship) Syria, (TV: The Crusade) Turkey, (AUDIO: Son of the Dragon) China, Mongolia, (TV: Marco Polo) India, (TV: Tooth and Claw), the Roman Empire, (TV: The Romans), the Eastern Roman Empire (PROSE: Shadowmind), the Holy Roman Empire (PROSE: The Lonely Computer), Mercia, (PROSE: The Dying Days), the Iceni tribe, (AUDIO: The Wrath of the Iceni) Troy, (TV: The Myth Makers) Ur, and Uruk were all monarchies at some point in their histories. (PROSE: Timewyrm: Genesys, Happy Endings)

Though the Draconian Empire was theoretically an absolute monarchy, the emperor still relied on the support of the nobles. It was rare but not unheard of for the nobles to overthrow an unpopular emperor. (PROSE: Doctor Who and the Space War)

Aneth was the home planet of the Anethans and was ruled by a monarchy. (TV: The Horns of Nimon)

Traken once had a monarchic system of government. (PROSE: The Immortals)

The planet Eros had a monarchy when the Eighth Doctor and Samantha Jones visited it. (PROSE: The Queen of Eros)

Circa the 26th century, the Folflower system was a constitutional monarchy, based on Folflower. (PROSE: The Graves of Mordane)

Gavin was the heir to the monarchy of a planet halfway across the universe without knowing it. (TV: The Empty Planet)

Starship UK retained the British Royal Family as monarchs from the 29th century to at least the 52nd century. (TV: The Beast Below, The Pandorica Opens)