Carmarthenshire antedated the Statute of Rhuddlan (1284) and historically was the area subject to the control of the royal castle at Carmarthen. The union legislation of 1536 added seven outlying lordships to the existing county, but omitted districts immediately west of the town of Carmarthen, which were annexed to Pembrokeshire. This anomalous situation was addressed by statute in 1543, when Llanstephan, Ystlwyf and Laugharne were amalgamated as the new Carmarthenshire hundred of Derllys.
The site of the Carmarthenshire election was not specified by the statute of enfranchisement, but hustings were held at Carmarthen regularly in the sixteenth century, and the elections of 1624, 1625 and 1626 took place at the town’s guildhall.
In the Elizabethan period the Jones family of Abermarlais had dominated the county’s parliamentary representation, but the death of Sir Thomas Jones† in 1604 ended their influence. After a brief interlude their place was taken by the Vaughans of Golden Grove. The paterfamilias, Sir John, had won the county seat in 1601, but did not seek the place in the next two elections, perhaps because he desired to maintain a low profile after being implicated in the Essex revolt. This allowed the shire to accommodate the naval official Sir Robert Mansell in 1604 and 1614, a Glamorganshire native who only acquired an estate at Laugharne in south-western Carmarthenshire in 1615.
Mansell subsequently transferred his electoral interests to Glamorgan, and following his departure, the Vaughans of Golden Grove dominated Carmarthenshire’s representation for the remainder of the period. Sir John Vaughan was returned in 1621 with the support of his brothers Henry Vaughan of Derwydd – who was returned for the borough seat – and Walter Vaughan of Llanelli. The endorsement of Sir Henry Jones, head of the Abermarlais clan, testifies to the wide support he enjoyed among the leading gentry of Carmarthenshire.
Number of voters: over 160 in 1545.
