History of Guernsey 933 when the islands, came under the control of William Longsword, son of Rollo the first Duke of Normandy, having been annexed from the Duchy of Brittany by the Duchy of Normandy. The island of Guernsey and the other island in the Channel Islands represent the last remnants of the medieval Duchy of Normandy. In the islands, Elizabeth II's traditional title as head of state is Duke of Normandy. (The masculine nomenclature "Duke" is retained even when the monarch is female.) According to tradition, Robert I, Duke of Normandy (the father of William the Conqueror) was journeying to England in
External relations of Guernsey aim is to "promote the harmonious and mutually beneficial development of the totality of relationships among the peoples of these islands". In September 2015 there was a meeting with Nicola Sturgeon. Guernsey has formed part of the British–Irish Council since it was formed in 1999, as does Northern Ireland. Meetings take place twice a year, in 2004, 2010 and 2014 the meetings have taken place in Guernsey. Its stated aim is to "promote the harmonious and mutually beneficial development of the totality of relationships among the peoples of these islands". Guernsey has entered into Tax Information Exchange Agreements with most