Division number 84 – in the House of Commons on 22 Hydref 2015.
A majority of MPs agreed and wedi pleidleisio to to give MPs from England, Wales and Northern Ireland a veto over laws impacting just their parts of the UK and against putting the decision off until a committee had considered it.
Eisiau deall mwy am y bleidlais hon? Darllenwch y ddadl yr oedd yn rhan ohoni.