King of England

This list of kings and queens of the Kingdom of England begins with Alfred the Great, who initially ruled Wessex, one of the seven Anglo-Saxon kingdoms which later made up modern England. Alfred styled himself King of the Anglo-Saxons from about 886, and while he was not the first king to claim to rule all of the English, his rule represents the start of the first unbroken line of kings to rule the whole of England, the House of Wessex.

Arguments are made for a few different kings thought to control enough Anglo-Saxon kingdoms to be deemed the first king of England. For example, Offa of Mercia and Egbert of Wessex are sometimes described as kings of England by popular writers, but it is no longer the majority view of historians that their wide dominions are part of a process leading to a unified England. Historian Simon Keynes states, for example, that "Offa was driven by a lust for power, not a vision of English unity; and what he left was a reputation, not a legacy." This refers to a period in the late 8th century when Offa achieved a dominance over many of the kingdoms of southern England, but this did not survive his death in 796.

In 829 Egbert of Wessex conquered Mercia, but he soon lost control of it. It was not until the late 9th century that one kingdom, Wessex, had become the dominant Anglo-Saxon kingdom. Its king, Alfred the Great, was overlord of western Mercia and used the title King of the Angles and Saxons, but he never ruled eastern and northern England, which was then known as the Danelaw, having earlier been conquered by the Danes from Scandinavia. His son Edward the Elder conquered the eastern Danelaw, but Edward's son Æthelstan became the first king to rule the whole of England when he conquered Northumbria in 927, and he is regarded by some modern historians as the first true king of England. The title "King of the English" or Rex Anglorum in Latin, was first used to describe Æthelstan in one of his charters in 928.

The Principality of Wales was incorporated into the Kingdom of England under the Statute of Rhuddlan in 1284, and in 1301 King Edward I invested his eldest son, the future King Edward II, as Prince of Wales. Since that time, except for King Edward III, the eldest sons of all English monarchs have borne this title.