Politics of the Bailiwick of Guernsey take place in a framework of a parliamentary representative democratic British Crown dependency.
The Bailiwick of Guernsey has an unwritten constitution arising from the Treaty of Paris (1259). When Henry III and the King of France came to terms over the Duchy of Normandy, the Norman mainland the suzerainty of the King of France. The Channel Islands however remained loyal to the British crown due to the loyalties of its Seigneurs. But they were never absorbed into the Kingdom of England by any Act of Union and exist as "peculiars of the Crown".