John Bercow has been attacked following the publication of his autobiography
The former Buckinghamshire MP names officials he worked with during his time as Speaker in his book, "Unspeakable: The Autobiography".
Angrily attacking the information Mr Bercow discloses in the memoir, a House of Commons spokesman said: "It is unacceptable to publicly name current or former staff without their prior knowledge or authority, especially for the purpose of financial gain or commercial success.
"A crucial element of the work of House of Commons staff is to provide confidential, impartial advice to MPs. Breaking this confidentiality undermines this important principle and also places staff in a position from which they are unable to respond."
The statement was released this afternoon by the House of Commons press office on Twitter.
Mr Bercow has recently come under fire for allegations of bullying during his time in the Commons.
The former Speaker spent 10 years in the role, but his tenure became mired in controversy.
Ex-Black Rod David Leakey and former aide Lord Lisvane have both accused the former Speaker of bad behaviour whilst he was in post.
Mr Bercow's autobiography was released on February 6.
It was released on Amazon with a description which read: "Unspeakable is John Bercow's characteristically forthright and incisive account of his unique vantagepoint into British politics.
"Containing verdicts on many of the leading figures of this era, from Tony Blair to David Cameron, Theresa May, and Boris Johnson, Bercow explores and explains the ways in which he has sought to democratise the business of Parliament, using the Speakership to champion the rights of backbench MPs and hold the government to account."
The memoirs have been described as "grippingly candid".
More to follow...