The signing ceremony, hosted by the Prime Minister of the Free State of Saxony, took place at the European Committee of Regions in Brussels on 7 September.
Cynhaliwyd y seremoni arwyddo, a gynhaliwyd gan Brif Weinidog Talaith Rydd Sacsoni, ym Mhwyllgor Rhanbarthau Ewrop ym Mrwsel ar 7 Medi.