Division number 87 – in the House of Commons on 22 Hydref 2015.
A majority of MPs disagreed and wedi pleidleisio to give the MPs from England, Wales and Northern Ireland a veto when laws specifically impacting one or more of those parts of the United Kingdom are before the House of Commons.
Eisiau deall mwy am y bleidlais hon? Darllenwch y ddadl yr oedd yn rhan ohoni.