The statement read: “The Queen continues to experience episodic mobility problems, and in consultation with her doctors has reluctantly decided that she will not attend the State Opening of Parliament.
“At Her Majesty’s request, and with the agreement of the relevant authorities, The Prince of Wales will read The Queen’s speech on Her Majesty’s behalf, with The Duke of Cambridge also in attendance.
“The Queen had to sign new letter patent to allow Prince Charles to read her speech at the State Opening tomorrow. He is doing so as a Counsellor of State.
“Prince William is joining him as two Counsellor of State are required to perform any of the Queen’s constitutional duties.”