Michael Gove leaked the Queen’s private comments on the European Union to the press to boost the Brexit campaign, Nick Clegg has claimed.

In a new BBC documentary to air on Monday, the former deputy prime minister names Mr Gove as the source behind a Sun story which suggested the Queen supported leaving the EU.

The story triggered a heated row at the time with Buckingham Palace, which the unusual step of formally complaining about the report to the press watchdog.

Mr Clegg, the former Liberal Democrat leader who attended the event where the comments were made, goes public with the accusation that Mr Gove – also present – leaked the remarks.