Cymru (etholaeth Senedd Ewrop): Gwahaniaeth rhwng fersiynau

| colspan = 2 | 1999 (5ed Senedd)

| colspan = 2 | 2004 (6ed Senedd)

|-

! ASE<br />''Plaid''

| width=1px style="background-color: {{Y Blaid Geidwadol (DU)/meta/lliw}}" |

| [[Kay Swinburne]]<br />''[[Y Blaid Geidwadol (DU)|Ceidwadol]]''

|-

! ASE<br />''Plaid''

| width=1px style="background-color: {{Plaid Annibyniaeth y Deyrnas Unedig/meta/lliw}}" |

| [[John Bufton]]<br />''[[Plaid Annibyniaeth y Deyrnas Unedig|Plaid Annibyniaeth<br>y Deyrnas Unedig]]''

|-

! ASE<br />''Plaid''

| width=1px style="background-color: {{Y Blaid Lafur (DU)/meta/lliw}}" |

| [[Derek Vaughan]]<br />''[[Y Blaid Lafur (DU)|Llafur]]''

|-

! ASE<br />''Plaid''

| width=1px style="background-color: {{Plaid Cymru/meta/lliw}}" |

| colspan = 5 | [[Jill Evans]]<br />''[[Plaid Cymru]]''

|-

! ASE<br />''Plaid''

| width=1px style="background-color: {{Plaid Cymru/meta/lliw}}" |

| [[Eurig Wyn]]<br />''[[Plaid Cymru]]''

|}