The medieval lordship of Glamorgan was formed after the Norman invasion of the Welsh kingdom of Morgannwg in the last years of the eleventh century. The lordship extended from the River Rhymni in the east to the upper reaches of the Tawe in the west, and was bounded to the north and south by the lordship of Brecon and the Bristol Channel respectively.
The new county was also disparate in its physical geography, something which affected the patterns of Normanisation, language, settlement and agriculture. The essential division was between the uplands or blaenau of the north and the smaller area of bro or Vale lowlands in the southern coastal plain, although a zone of transition or border Vale cut east-west through the county.
On the death of the 2nd earl of Worcester in 1549, many of his offices and much of his influence in Glamorgan passed to William Herbert†, later 1st earl of Pembroke. Herbert was rewarded for his role in suppressing the western rebellion of 1549 with enormous grants of land, which left him as lord of most of Glamorgan; his family consequently became one of the most powerful political influences in the shire down to the Civil Wars, despite their residence at Wilton, in Wiltshire. Herbert influence did not go unchallenged, however, and the sixteenth century saw a good deal of feuding between various gentry groups in the shire, although this had largely dissipated by Elizabeth’s death.
After the king ennobled Herbert as earl of Montgomery in May 1605, Sir Thomas Mansell of Margam, sheriff the previous year, and head of the most powerful gentry interest in Glamorgan, was returned at the ensuing by-election; he also took the county seat again in 1614. Mansell was related through his mother to the earls of Worcester, and served as their steward in the lordship of Gower, but there is no evidence to suggest that his return demonstrates electoral rivalry between Worcester and Pembroke.
Mansell’s advancing age probably dissuaded him from seeking re-election in 1621, at which time his brother, Sir Robert*, was absent leading an expedition against Algerian pirates. This left the county seat open for William Price of Britton Ferry. Price enjoyed the support not only of Sir Thomas Mansell, whose son and stepson witnessed his return, but also the representatives of the county’s most prominent families.
Having returned from the Mediterranean, Sir Robert Mansell secured election for Glamorgan in 1624, and again in 1625 and 1628. On each occasion his elder brother, Sir Thomas, lent his support, as did his nephews Arthur and Sir Lewis Mansell.
How far Mansell owed his return for Glamorgan to Pembroke’s influence is uncertain, but Herbert supporters such as William Price of Britton Ferry and William Herbert* of Grey Friars were certainly signatories to all three returns. Moreover, in 1626 Pembroke provided Mansell with a seat at Lostwithiel, having recruited him to assist to assist in the parliamentary attacks on the duke of Buckingham.
Glamorgan’s elections were consistently held at Bridgend, a location probably chosen for its centrality, allowing ease of access for the gentry from both the east and west of the shire. Although there were more than 700 freeholders in the early seventeenth century, it is not known how many attended the hustings at any given election. Generally the parties contracting with the sheriff were comprehended under the heading ‘all other free tenants of the shire’, but the signatories were limited usually to between 10 and 20 representatives of the county’s major families.
Glamorgan business was brought occasionally before Parliament during this period. During the debates over the subsidy bill in 1606, one unnamed Member, probably Sir Thomas Mansell, put the case for delaying the collection in Glamorgan on account of the concurrent levying of mises which were due after James’s accession.
Number of voters: over 700 in 1634
