Government plans to change the rules on succession to the throne have been cleared by Buckingham Palace, David Cameron has told MPs.
Father of the House Sir Peter Tapsell queried whether the plans - which will allow first born women to take precedence in the line of succession for the first time and allow marriage to Catholics - were backed by the Royal Family.
Sir Peter raised the issue at Prime Minister's Questions after Prince Charles' questions about aspects of the plans earlier this week.
He said: "Bearing in mind that Bills which may be thought to affect the Royal Prerogative require the signification of the Queen at second reading, can you tell us whether you have yet heard from the palace whether it regards any of the major constitutional changes proposed in the Succession to the Crown Bill as intruding either on the Royal Prerogative or on the Coronation Oath which Her Majesty took?"
Mr Cameron replied: "What I can say is throughout the process of bringing forward this proposal, which is a proposal that head of all the Commonwealth dominion realms have also signed up to, through that process there has been thorough contact between Number 10 Downing Street and the Palace.
"All of the issues are settled and agreed."
The Bill, which will be retrospective when it becomes law, is expected to be pushed through the Commons in a single day.
It would allow the Duke and Duchess of Cambridge's first baby to succeed to the throne whether it is a boy or a girl.