At its formation under the Henrician Acts of Union, the constituency of Denbigh Boroughs had comprised the four chartered boroughs of Denbigh, Ruthin, Holt and Chirk. Located close to the centre of Denbighshire in the Vale of Clwyd, Denbigh and Ruthin were among the county’s three main market towns – the third being Wrexham. Holt, a smaller market town near the county’s eastern border with Cheshire, was falling under the economic sway of nearby Wrexham and reverting to an agrarian community. Chirk, lying close to the county’s south-eastern border with Shropshire, had ‘shrunk to insignificance’ and had probably ceased to participate in parliamentary elections by the 1640s.
The economies of Denbigh and Ruthin rested largely upon processing and marketing the wide range of agricultural produce farmed in the Vale of Clwyd and its surrounding uplands.
Parliamentary elections for the Boroughs alternated between Denbigh and Wrexham and appear to have been dominated by Denbigh corporation – not least because the returning officers were the town’s two bailiffs.
In the elections to the Long Parliament, the Boroughs returned Simon Thelwall of Plas-y-Ward (a few miles to the south east of Denbigh and north west of Ruthin) on 24 October 1640. Again, there is no evidence of a contest. The Thelwalls of Plas-y-Ward and Bathafarn in the Vale of Clwyd had occupied the shire seat on four occasions since 1614.
Disenfranchised under the Instrument of Government in 1653, Denbigh Boroughs regained its seat in the elections to Richard Cromwell’s* Parliament of 1659, to which it returned John Manley of Bryn-Y-Ffynnon in Wrexham. A younger son of a minor Denbighshire gentry family, Manley had taken up residence at Bryn-Y-Ffynnon, the largest house in Wrexham, by 1658 at the latest. As a religious radical and man of small estate, he had probably relied heavily for electoral support on his colleagues among the county’s parliamentarian leadership – and in particular, perhaps, on the governor of Denbigh, Colonel George Twisleton*.
Right of election: in the freemen of Denbigh, Ruthin, Holt ?and Chirk.
