Division number 311 – in the House of Commons on 29 Ionawr 2019.
A majority of MPs disagreed and wedi pleidleisio against seeking to delay the United Kingdom's withdrawal from the European Union if no withdrawal agreement has been negotiated, and accepted by the House of Commons, by 26 February 2019.
Eisiau deall mwy am y bleidlais hon? Darllenwch y ddadl yr oedd yn rhan ohoni.