Role of Monarchy in British constitution

Queen Elisabeth II UK head of State (and many from Commonwealth), Constituinal Monarchy: queen doesn’t rule but appoints government, choosen in democratic elections, Monarch can advise but decisions are made by PM and cabinet, Queen Diamond Jubilee 2012, Married to Prince Philip Duke of Edingburgh and son Prince Charles Prince of Wales (heir to the throne), Ceremonial role (opening of new parliamentary session), Representative role (World polical and economic relationships), National stability and continuity role