The concept of treason can be dated back to the early Roman republic, but was defined by nebulous criteria, it would be the common laws of this time period which would most directly influence those customary in the court of King Arthur, a legendary British leader who, according to medieval histories and romances, led the defence of Britain against which invaders in the late 5th and early 6th centuries AD?
Treason in Arthurian legend The concept of treason can be dated back to the early Roman republic, but was defined by nebulous criteria. Frederic William Maitland, author of The History of English Law Before the Time of Edward I, has said that "treason is a crime [with] a vague circumference and more than one centre." Early French and Anglo-Saxon laws for the prosecution of persons deemed traitorous were inspired by, and in some cases, directly pulled from, late Roman and Germanic conceptions of the crime. It would be the common laws of this time period which would most directly influence those customary in King Arthur’s court — assuming its existence is founded in more than the legends and fables of medieval romances.
Old Bailey The Central Criminal Court of England and Wales, commonly known as the Old Bailey from the street on which it stands, is a court in London and one of a number of buildings housing the Crown Court. Part of the present building stands on the site of the medieval Newgate gaol, on a road named Old Bailey that follows the line of the City of London's fortified wall (or "bailey"), which runs from Ludgate Hill to the junction of Newgate Street and Holborn Viaduct. The Old Bailey has been housed in several structures near this location since the 16th century, and its present building dates from 1902.