Bailiwick of Guernsey history of the Bailiwick of Guernsey goes back to 933, when the islands came under the control of William Longsword, having been annexed from the Duchy of Brittany by the Duchy of Normandy. The island of Guernsey and the other Channel Islands formed part of the lands of William the Conqueror. In 1204 France conquered mainland Normandy – but not the offshore islands of the bailiwick. The islands represent the last remnants of the medieval Duchy of Normandy. Initially there was one governor, or co-governors working together, of the islands making up the Channel Islands. The title "Governor" has changed
Guernsey Ambulance and Rescue Service enjoyed by St John Ambulance (England and the Islands), the organisation of which Guernsey Ambulance and Rescue Service was formerly a constituent part. On 1 July 2012 St John Ambulance in Guernsey ceased to be part of the Priory of England and the Isles, and was established as an autonomous Commandery of the Venerable Order of St John. Thus both St John Ambulance (Guernsey) and the Guernsey Ambulance and Rescue Service (as sister organisations) remain under the umbrella of the Venerable Order of St John, but through independent local control, rather than the English Priory. Operating 24 hours a day,