1. Elected Editor of the publications of the International Arthurian Society (a scholarly society with more than 1,000 members world-wide)

   Radulescu, R. (Derbynydd), 23 Gorff 2011

   Gwobr: Anrhydedd genedlaethol/ryngwladol

2. Elected Fellow of the English Association

   Radulescu, R. (Derbynydd), 20 Maw 2019

   Gwobr: Cymrodoriaeth a roddwyd ar sail cystadleuaeth

3. Elected Fellow of the Learned Society of Wales

   Lewis, A. (Derbynydd), 11 Ebr 2024

   Gwobr: Cymrodoriaeth a roddwyd ar sail cystadleuaeth

4. Elected Fellow of the Learned Society of Wales

   Abrams, N. (Derbynydd), 2020

   Gwobr: Cymrodoriaeth a roddwyd ar sail cystadleuaeth

5. Elected Fellow of the Learned Society of Wales

   Radulescu, R. (Derbynydd), 20 Maw 2018

   Gwobr: Cymrodoriaeth a roddwyd ar sail cystadleuaeth

6. Elected Fellow of the Royal Historical Society

   Radulescu, R. (Derbynydd), 20 Chwef 2019

   Gwobr: Cymrodoriaeth a roddwyd ar sail cystadleuaeth

7. Elected President of the British Branch of the International Arthurian Society for a three-year term (2015-2018)

   Radulescu, R. (Derbynydd), 5 Medi 2015

   Gwobr: Penodiad

8. Elected Vice-President of the International Arthurian Society

   Radulescu, R. (Derbynydd), 21 Gorff 2021

   Gwobr: Anrhydedd genedlaethol/ryngwladol

9. Ethol yn Gymrawd Cymdeithas Ddysgedig Cymru (FLW)

   Wiliams, G. (Derbynydd), 2016

   Gwobr: Anrhydedd genedlaethol/ryngwladol

10. External Examiner for the University of Aberdeen (2022-2026)

    Wang, S. (Derbynydd), 25 Tach 2022

    Gwobr: Penodiad