Division number 3 – in the House of Commons on 19 Hydref 2019.
A majority of MPs disagreed and wedi pleidleisio to withhold approval of the agreement with the EU on arrangements for the UK's withdrawal from the union unless and until it is implemented in UK law.
Eisiau deall mwy am y bleidlais hon? Darllenwch y ddadl yr oedd yn rhan ohoni.