1/01/01 → 31/12/99
Project: Ymchwil
Hughes, C.
1/09/19 → 1/08/22
French, G.
1/11/21 → 1/08/22
Ap Gwilym, R.
1/10/19 → 1/08/20
Charlton, A.
1/04/12 → 18/07/12
Prys, D.
1/04/20 → 30/04/25
Golyshin, P.
1/06/21 → 30/06/25
1/01/96 → 31/10/11
1/10/04 → 31/05/10
1/02/05 → 31/07/09