Mae'r Datganiad yn fynegiant pwysig nid yn unig o awydd cyfunol rhanbarthau ar draws Ewrop i barhau i gydweithredu unwaith y bydd y DU wedi gadael yr UE, ond hefyd o gydnaws a chefnogaeth i Gymru a rhanbarthau eraill y DU wrth inni wynebu heriau annisgwyl Brexit .
The Declaration is an important expression not only of the collective desire of regions across Europe to continue to co-operate once the UK has left the EU, but also of solidarity and support for Wales and other UK regions as we face the undeniable challenges of Brexit.