Vincent Black Knight from the saddle and a single damper replaced the twin rear shocks. The frame was also modified with the strong steel 'backbone' was replaced with a single tubular strut bolted to the steering head (which proved much weaker). The Black Knight was launched at the 1954 Earls Court motorcycle show, together with the 998cc Vincent Black Prince (an enclosed version of the Black Shadow ) and the 500cc Vincent Victor (which never went into production as only the prototype was ever built). There was a lot of interest but much of it was critical, and the Black Knight/Black Prince models
Edward the Black Prince gathered. On 23 March 1357 the prince concluded a two years' truce, for he wished to return home. The Gascon lords were unwilling that King John II should be carried off to England, and the prince gave them a hundred thousand crowns to silence their murmurs. He left the country under the government of four Gascon lords and arrived in England on 4 May, after a voyage of eleven days, landing at Plymouth. When he entered London in triumph on 24 May, King John II, his prisoner, rode a fine white charger, while he was mounted on a little black