On Wednesday 7 December MPs debated an Opposition motion calling on the government to publish a plan for Brexit negotiations before triggering Article 50. Prime minister Theresa May bowed to pressure and committed to revealing a blueprint but not before adding an amendment calling on all members to "respect the wishes of the UK as expressed in the referendum on 23 June" and back invoking Article 50 by 31 March 2017.
MPs voted 461-89 in favour of the motion with Ken Clarke the only Conservative to rebel. Some 23 Labour MPs did not follow their leader Jeremy Corbyn in voting with the government and all 51 SNP Members voted against.
During the debate Brexit secretary David Davis said it would be 'inconceivable' that MPs will not get a vote on the final deal.
Here is a full list of the 89 MPs who refused to support invoking Article 50 by March next year:
Lib Dems (5)
Green Party (1)
Plaid Cymru (3)
Liz Saville Roberts
Stuart Blair Donaldson
John Mc Nally