Topic summary
King of the English

Extracted from the Wikipedia article List of English monarchs.
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 the overlord of western Mercia and used the title King of the Angles and Saxons though he never ruled eastern and northern England, which was then known as the Danelaw and had been conquered by the Danes, from southern Scandinavia. Alfred's son Edward the Elder conquered the eastern Danelaw. Edward's son Æthelstan became the first king to rule the whole of England when he conquered Northumbria in 927. Æthelstan 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 standard title for monarchs from Æthelstan until John was "King of the English". In 1016, Cnut the Great, a Dane, was the first to call himself "King of England". In the Norman period, "King of the English" remained standard, with occasional use of "King of England" or Rex Anglie. From John's reign onwards, all other titles were eschewed in favour of "King" or "Queen of England".