Three Conservative MPs from Cambridgeshire and Hertfordshire have helped defeat the Government by amending the EU Withdrawal Bill.
The MP for Huntingdon, Jonathan Djanogly, the MP for South Cambridgeshire, Heidi Allen and the long-serving North Hertfordshire MP Sir Oliver Heald joined 11 Conservative rebels.
It was the first defeat for Theresa May's Government over key Brexit legislation and came after a last-ditch concession failed to quash a Tory rebellion.
Cheers sounded in the Commons when it became clear MPs had approved an amendment to the Bill which guarantees Parliament a "meaningful" vote on any Brexit deal.
The result was announced as 309 votes to 305, majority four, in support of the proposal from Conservative former attorney general Dominic Grieve.
His amendment would require any Brexit deal to be approved by a separate Act of before it could be implemented.