Rules of succession pledge
Labour has pledged cross-party co-operation to change the rules of succession, following the announcement that the Duchess of Cambridge is expecting her first child.
St James's Palace today announced the royal couple were "pleased" with the news, as politicians lined up to wish them well.
"It's absolutely wonderful news and I'm delighted for them," the Prime Minister said.
Ed Miliband and Nick Clegg joined the chorus of congratulations.
Shadow Justice Secretary Sadiq Khan said: "It’s only right that we rectify the historical anomaly that prevents the eldest child of the monarch from becoming the Head of State simply because of their gender.
"Labour will co-operate with the Government to ensure that legislation on reforming our laws of Royal succession is in place as speedily as possible."
William Hague voiced his support for a change to the Act of Succession, saying that it "has to be done quickly".