Justine Greening, education secretary and Conservative MP for Putney, Roehampton and Southfields has confirmed she will vote for the triggering of Article 50.
MPs are voting tonight (February 1) on whether to allow Prime Minister Theresa May to pass a bill that will formally mark Britain’s exit from the European Union.
Greening said she was elected on a manifesto commitment to hold an in/out referendum on EU membership, and to "respect the national result".
She said: "This bill is about getting on with delivering on the outcome of the referendum we held last year, and I will be voting in favour of it.
"I may have campaigned to stay in but I feel we have to respect the overall democratic result, and it is not for MPs to try and unpick that."
Wandsworth residents voted to remain in the EU by an overwhelming majority of 75 per cent last June.
Conservative MP for Battersea Jane Ellison has also said she will vote to trigger Article 50.
However, Labour MP for Tooting and shadow minister for sport, Dr Rosena Allin-Khan today (February 1) confirmed she would defy a three line party whip by voting against the bill and sticking with her constituents.
If MPs pass the bill today as expected, a further three days of debates will go on before the Government can go ahead with the process.
Following this, negotiations can begin with the EU.
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