Conservative civil war over Europe is an attempt to block the Maastricht Treaty. Rees-Mogg challenges the prime minister's European plans - but this wasn't Theresa May and Jacob Rees-Mogg but her predecessor, John Major, and his father, William, Lord Rees-Mogg.
The battle was not over Brexit but the Maastricht Treaty. Tory rebels vote with Labour to amend the treaty to ensure decision making members of the EU are "elected" members.
Read the full Maastricht treaty - Treaty on European Union.