Law of Guernsey by the Court of Alderney at a special sitting on Saturday 28 January 2017. King John, who reigned from 1199 to 1216, lost the English-controlled territories in Normandy in France following the 1204 Siege of Château Gaillard, the remaining Norman lands being the Channel Islands. King John promised the islands independence and the right to continue governing themselves after they confirmed their allegiance to the English Crown. Agents of the Crown called bailiffs would enforce the laws and run the courts, one in Jersey and one in Guernsey; the areas under the authority of these bailiffs were called bailiwicks. In
Maritime history of the Channel Islands at La Hougue Bie, Jersey give evidence of either populations living on or visiting the islands. Guernsey and Alderney were separated from mainland Europe around 7,000 BC with Jersey some time after, but even at 4,000 BC the islands were close to the mainland coast for basic boats to move between islands. Archaeological evidence of trade from the Iron Age period is in evidence in the Islands, with goods manufactured on the western coast such as armlets, Breton pottery and amphorae from the Mediterranean indicating trade along the Atlantic coast from Iberia to Ireland. Armorica was the nearest trade zone.