Parliament Invaded - 1647
Jul 21 Militiamen, reformadoes, apprentices and others gather at Skinners' Hall, London to sign a 'Solemn Engagement of the City' pledging to restore the King and bring him to Westminster.
Jul 22 Parliament removes control of London's trained bands from the City Council and reinstates the old City Militia Committee - Several thousand reformadoes demonstrate in St James' Field.

Skinners' Hall
Jul 26 Westminster is invaded by a mob who push their way into the House of Lords and  force them to vote to restore the City's Presbyterian Militia Committee, and to withdraw their condemnation of the 'Solemn Engagement'. 

They then storm into the House of Commons where they abuse and insult the members until they confirm the Lords' votes and pass a resolution inviting the King to London.

The MPs send to the Lord Mayor for some trained bands to protect them but their request is ignored.
Afterwards, the Speakers of both Houses, 8 peers and 57 MPs leave Westminster and flee to the Army's protection. William Lenthal, the Speaker of the Commons takes the mace with him.
Aug 6 The army under Fairfax escorts the Speakers, peers and MPs back to Westminster.
The proceedings of the members in the absence of Speaker Lenthal were later annulled (Null and Void Ordinance)- but pressure had first to be applied from Cromwell, Ireton and others. The Lord Mayor and three aldermen were also impeached for treason after their anti-Parliament activities. Many others were also indicted for treasonable behaviour.

A new Lord Mayor (Warner) was selected by the Army and the old defenses of the city were demolished so they could not be used again by the presbyterian City Councillors.