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
Parishes of Guernsey Parishes of Guernsey The Bailiwick of Guernsey includes the island of Guernsey and other islands such as Alderney, Sark, Herm, Jethou, Brecqhou, and Lihou. Each parish was established, probably in the 11th century, as a religious area, each having its parish church. Administratively each parish is now administered by an elected council known as a Douzaine. The island of Guernsey is divided into ten Parish (administrative division) (the Bailiwick of Guernsey also includes the parish of Saint Anne, Alderney and the parish of Saint Peter, Sark are not generally included in the enumeration of parishes as the names are not