While all the attention was on the Conservatives, who voted in greater numbers against equal marriage [2] (136 MPs) than in favour of it (127 MPs), a not insignificant number of Labour and Liberal Democrat MPs also opposed the bill. Twenty two Labour MPs voted against it, with sixteen abstaining, and four Lib Dems voted against it, with seven abstaining. Below is a full list of them. 

Based on the figures, 45 per cent of Tory MPs voted against the bill (58 per cent including abstentions), nine per cent of Labour MPs did (15 per cent including abstentions) and seven per cent of Lib Dem MPs did (20 per cent including abstentions).

Labour MPs who voted against equal marriage (22)

Joe Benton (Bootle)

Ronnie Campbell (Blyth Valley)

Tom Clarke (Coatbridge, Chryston & Bellshill)

Rosie Cooper (Lancashire West)

David Crausby (Bolton North East)

Tony Cunningham (Workington),

Jim Dobbin (Heywood & Middleton)

Brian Donohoe (Ayrshire Central)

Robert Flello (Stoke-on-Trent South)

Mary Glindon (Tyneside North)

Paul Goggins (Wythenshawe & Sale East)

Dai Havard (Merthyr Tydfil & Rhymney)

Michael McCann (East Kilbride, Strathaven & Lesmahagow)

Jim McGovern (Dundee West), Iain McKenzie (Inverclyde)

George Mudie (Leeds East)

Paul Murphy (Torfaen)

Stephen Pound (Ealing North)

Frank Roy (Motherwell & Wishaw)

Jim Sheridan (Paisley & Renfrewshire North)

Derek Twigg (Halton)

Mike Wood (Batley & Spen)

Liberal Democrat MPs who voted against equal marriage (4)

Sir Alan Beith (Berwick-upon-Tweed)

Gordon Birtwistle (Burnley)

John Pugh (Southport)

Sarah Teather (Brent Central)

Labour MPs who did not vote (16)

Dame Anne Begg (Aberdeen South)

Gordon Brown (Kirkcaldy & Cowdenbeath)

Alex Cunningham (Stockton North)

Bill Esterson (Sefton Central)

Pat Glass (Durham North West)

Roger Godsiff (Birmingham Hall Green)

David Heyes (Ashton Under Lyne)

Jim Hood (Lanark & Hamilton East)

Khalid Mahmood (Birmingham Perry Barr)

Michael Meacher (Oldham West & Royton)

Ian Mearns (Gateshead)

Yasmin Qureshi (Bolton South East)

Virendra Sharma (Ealing Southall)

Gavin Shuker (Luton South)

Stephen Timms (East Ham)

Shaun Woodward (St Helens South & Whiston)

Liberal Democrat MPs who did note vote (7)

Norman Baker (Lewes)

Martin Horwood (Cheltenham)

Charles Kennedy (Ross, Skye & Lochaber)

Greg Mulholland (Leeds North West)

John Thurso (Caithness, Sutherland & Easter Ross)

David Ward (Bradford East)

Jenny Willott (Cardiff Central)