Leicester Devereux, born into a position of wealth and political prominence, could trace his family origins in the Welsh Marches back to the twelfth century. His father’s main territorial base was in Warwickshire, but Leicester Devereux, like his younger brother Walter, married a Suffolk heiress and established himself in East Anglia. Upon his marriage he acquired the Ipswich estate of Christchurch but only after a bitter legal quarrel, firstly, with his volatile father-in-law Sir William Withypoll and, after Withypoll’s death, with Ptolemy Tollemache (whose family were major landowners in the area).
The date of Hereford’s succession to the viscountcy is uncertain but there is evidence that his father died in November 1649. This would explain Hereford’s revival, in the first months of 1650, of the 5th viscount’s suit against William Seymour, marquess of Hertford (later 2nd duke of Somerset), over entailed property in Herefordshire belonging to Robert Devereux†, 2nd earl of Essex.
Ipswich and its surrounding region, staunchly anti-Laudian since before the Civil Wars, proved a sympathetic political environment for the new viscount.
On 27 Apr. 1660 Hereford took his seat in the Lords as one of those former parliamentary supporters who would form the core of the presbyterian bloc in the House. Hereford had several kinship connections in the House including the Seymours, Mountjoy Blount, earl of Newport, and George Berkeley, 9th Baron (later earl of) Berkeley, his lifelong friend.
On 3 May 1660, Hereford was one of the peers named to the delegation to bring home the exiled king. Hereford was present in the House on 11 Sept. 1660 for the debates on the Lords proviso to the bill for confirming and restoring ministers; he registered his protest against the Lords amendments to the disputed proviso. He was rarely named to legislative committees but on 4 July 1661, was named to the committee for the bill to vacate fines levied by Sir Edward Powell. One week later, on 11 July 1661, he was tipped to support Aubrey de Vere, 20th earl of Oxford, in his case for the great chamberlaincy. On 16 July 1661 he registered his proxy in favour of Frederick Cornwallis, Baron Cornwallis, and the following day the House gave him leave to absent himself and go into the country.
Hereford clearly wished to spend more time in Suffolk in advance of the parliamentary election. In August 1661, through his ‘worthy and bountiful benevolence’ of 20 loads of timber to repair the Town House and quay, he helped to secure the re-election of his brother Walter as Member for Orford. Hereford’s two younger brothers, Walter and Edward, were freemen of the town and the family shared its political dominance with the Tollemaches. Hereford continued to exercise paternal oversight in Orford and in 1662 made a contribution to relieve the town’s needier inhabitants.
On 7 May 1662, Hereford was again excused absence from the House. This was repeated on 3 June 1663 when the House noted that he intended to leave his proxy. Two days later, the proxy was duly registered in favour of Berkeley, and was not vacated until the end of the session. By the middle of July 1663, it was assumed by Wharton that the proxy would be used to support the impeachment attempt on Edward Hyde, earl of Clarendon.
Hereford arrived for the spring 1664 session on 27 Apr. 1664 and was promptly named to the committee to compose differences between the former royalist Sir John Pakington‡ and the inhabitants of Aylesbury. The following week, Hereford claimed privilege in the case of his chaplain, Samuel Aldus, who had been ejected from Hereford’s donative living at St. Peter’s church in Ipswich by the ‘violence of factious people’. The case was referred to the committee for privileges, and the offenders were ordered to appear before the House. On 9 May 1664, Hereford’s complaint was discussed in committee and Hereford’s brother, Edward Devereux, gave a sworn statement. Since the offending action had fallen within the parliamentary session, the committee reported that Hereford’s parliamentary privilege had been breached and that his rights in the living should be restored.
Hereford remained in the country, hardly ever attending the autumn 1664 session and absenting himself from the Oxford Parliament in October 1665. It is possible that there was a fine dividing line between Hereford’s protection of his property rights and a more aggressive adventurism. In May 1666, the Swedish envoy complained that individuals acting in Hereford’s name had seized corn from a Swedish ship that had been wrecked near Orford Ness in 1662. The king ordered Hereford, who had refused to appear at the admiralty to answer the charge, to make good his claim.
The Anglo-Dutch wars rendered the Suffolk coast particularly vulnerable and Hereford’s military experience was useful in securing the region from attack. He and Oxford were both concerned in the defence of the coast in June 1667.
On 19 Oct. 1669, the first day of the new session, Hereford was named to the committee for privileges. He attended the brief session on only 11 days, and was named to only two committees. On 22 Nov. 1669 his proxy was registered in favour of James, duke of York. It was vacated at the end of the session in mid-December, to be re-entered on 17 Mar. 1670 in favour of York’s friend and ally, Henry Mordaunt, 2nd earl of Peterborough, for the duration of the session.
The Suffolk county by-election of February 1673, occasioned by the suicide of Henry North‡, came at a difficult time for the Church in the wake of the king’s Declaration of Indulgence. York, concerned at the political clout of Nonconformists, wrote to Hereford in advance of the poll recommending the court candidate Lionel Tollemache‡, styled Lord Huntingtower (later 3rd earl of Dysart [S]). Despite having the support of Hereford, the greater part of the Suffolk gentry, and the Church, the controverted election resulted in a defeat for Tollemache.
Hereford arrived in the House for the spring session on 18 Feb. 1673 and was named to three committees. His last attendance that session was on 8 Mar. – some seven months before the end of the session. He registered his proxy with his fellow East Anglian magnate, the former Presbyterian Horatio Townshend, Baron Townshend. The proxy was vacated at the end of the session.
Hereford was present on 7 Jan. 1674, the first day of the new session, and named to the committees for petitions and for privileges. He appears to have been inactive in the six week session. By the following year, his reaction to the policies of the government under the direction of Thomas Osborne, earl of Danby (later marquess of Carmarthen and duke of Leeds) identified him with the Country opposition.
Hereford died at the end of December 1676, having made a codicil to his will to protect his financial arrangements from disruption by his second wife. He was succeeded in the peerage by his three-year-old son and namesake. Hereford’s executors – Thomas Edgar (senior and junior), Charles Cocks, Edward Steynor, and the Sudbourne rector, Theophilus Hook, were given guardianship of the young 7th Viscount, who was to be maintained from family estates in Pembrokeshire.
