This rundown of lords and ruling sovereigns of the Realm of Britain starts with Alfred the Incomparable, who at first managed Wessex, one of the seven Somewhat English Saxon realms which later made up current Britain. Alfred styled himself Lord of the Somewhat English Saxons from around 886, and keeping in mind that he was not the main ruler to profess to manage all of the English, his standard addresses the beginning of the principal solid line of rulers to administer the entire of Britain, the Place of Wessex.[1]

Contentions are made for a couple lords remembered to have controlled an adequate number of Somewhat English Saxon realms to be considered the primary ruler of Britain. For instance, Offa of Mercia and Egbert of Wessex are at times depicted as rulers of Britain by famous scholars, yet it is presently not the larger part perspective on history specialists that their wide territories are essential for an interaction prompting a brought together Britain. Antiquarian Simon Keynes states, for instance, that "Offa was driven by a desire for power, not a dream of English solidarity; and what he left was a standing, not a legacy."[2] This alludes to a period in the late eighth century when Offa accomplished a strength over large numbers of the realms of southern Britain, yet this didn't endure his demise in that frame of mind, in 829 Egbert of Wessex vanquished Mercia, yet he before long failed to keep a grip on it.

It was only after the late ninth century that one realm, Wessex, had turned into the prevailing Somewhat English Saxon realm. Its top dog, Alfred the Incomparable, was master of western Mercia and utilized the title Ruler of the Points and Saxons, however he never managed eastern and northern Britain, which was then known as the Danelaw, having prior been vanquished by the Danes from southern Scandinavia. His child Edward the Senior vanquished the eastern Danelaw, yet Edward's child Æthelstan turned into the primary lord to lead the entire of Britain when he vanquished Northumbria in 927, and he is viewed by a few present day antiquarians as the principal genuine ruler of England.[3][4] The title "Lord of the English" or Rex Anglorum in Latin, was first used to depict Æthelstan in one of his contracts in 928. The standard title for rulers from Æthelstan until John was "Lord of the English". Cnut the Incomparable, a Dane, was quick to refer to himself as "Ruler of Britain". In the Norman period "Ruler of the English" stayed norm, with periodic utilization of "Lord of Britain" or Rex Anglie. From John's reign onwards any remaining titles were shunned for "Lord" or "Sovereign of Britain".

The Realm of Ridges was integrated into the Realm of Britain under the Rule of Rhuddlan in 1284, and in 1301 Lord Edward I contributed his oldest child, the future Lord Edward II, as Sovereign of Grains. Since that time, the oldest children of every English ruler, with the exception of Lord Edward III, [a] have borne this title.

After the passing of Sovereign Elizabeth I without issue in 1603, Lord James VI of Scotland acquired the English crown as James I of Britain, joining the crowns of Britain and Scotland in private association. By regal declaration, James styled himself "Ruler of Incredible England", however no such realm was really made until 1707, when Britain and Scotland joined during the rule of Sovereign Anne to frame the new Realm of Extraordinary England, with a solitary English parliament sitting at Westminster. This obvious the finish of the Realm of Britain as a sovereign state.