Seymour’s prospects after the Restoration were conditioned by the death of his father, now newly restored to the Somerset dukedom, in October 1660. The dukedom then went to Seymour’s nephew, William Seymour, 3rd duke of Somerset, who came under the guardianship of his mother, Lady Mary (d.1715). In 1657 she had taken a second husband, Henry Somerset, styled Lord Herbert, the future duke of Beaufort. Seymour’s father had provided for him in his will, intending to devise on him the manor of Midgehall in Lydiard Tregoze. However, that estate was held by the widow of his uncle Henry Seymour, styled Lord Beauchamp (d. 1618), as part of her jointure and it was also ‘estated’ out for the life of one of the Pleydells. In the interim Lord John was to receive £600 per year in maintenance, together with the £200 allowed for in an indenture of 13 Nov. 1652. All this was intended to supply his portion of £10,000.
Seymour was returned for Marlborough in 1661, following a last-ditch effort by one of his father’s trustees, Amos Walrond‡, having been recommended by his mother and his uncle Francis Seymour, Baron Seymour of Trowbridge.
Marriage did not solve Seymour’s financial difficulties and in December 1663 he petitioned the lord chancellor, Edward Hyde, earl of Clarendon, concerning a chancery case against his nephew Somerset and Somerset’s guardians, Lord and Lady Herbert, wherein he had attempted to have the reversion of the manor of Midgehall settled upon him, and for his £600 a year maintenance. The delay in settling the case had led to him being ‘deprived of his only subsistence and debarred his liberty for want of money to pay his creditors’.
very sad, having not one farthing but what the portion which his lady brought to him, and nothing out of his father’s estate. There is now behind to him about £4,000 for his annuity and legacy of £1,000. His debts do so pinch him that he is a continual prisoner and a close one to his chamber whilst the privilege of Parliament protects him.
It seemed that Midgehall might have to be sold as soon as it came into his possession.
Seymour’s situation worsened when the dowager duchess ‘refused on a quarrel’ to pay him the £600 a year left him by his father, and ‘turned him out of her house’, whereupon, as his wife later alleged, she took lodgings on the fourth floor of Gray’s Inn, and ‘after ten years’ care, paid off the debts, except £1,000 lost by him at play’.
Contemporaries seemed to have been underwhelmed by the new duke: Sir Ralph Verney‡ merely noted him as ‘a man whose person is as mean as his parts’.
In October 1672 Lady Mary Hastings reported that Somerset and his wife ‘are parted and (as ’tis feared) irreconcilably. He discovers very much his own weakness by making public to the world all the quarrels that have passed between them and many weak complaints, too long to relate.’
A writ of summons was issued to the new duke on 5 Feb. 1673.
Somerset gained little by the death of his mother in April 1674, as the estate at her disposal went primarily to Thomas Thynne, the future Viscount Weymouth and husband of her granddaughter Lady Frances Finch. In a codicil written a few days before her death, Drayton manor was conveyed to Somerset for £10,000, not the £12,000 originally intended. Estates in Ireland and Herefordshire were settled on him, but these may have been contested as they had originally been part of the current duchess’s jointure, even though the duke had claimed he had exchanged these following his accession to the dukedom and only upon her death in 1692 did Sir Edward Harley‡ note that Weymouth had thereby become ‘a great lord in Herefordshire’.
Somerset was clearly not well. George Johnson‡ reported that he had left the duke’s on 12 Mar. 1675, at which time he did not think him ‘in a dangerous condition’. The recipient of his letter, Worcester (the former Lady Herbert), was clearly concerned that Somerset would alter his will to favour the heir to the dukedom, Francis Seymour, 3rd Baron Seymour of Trowbridge.
On 30 Apr. 1675 Johnson reported Somerset’s death to Worcester (as Herbert had since become), ‘having his will in my study in the country’, adding that ‘I conceive it is for my Lady Elizabeth [Seymour], to take care about the funeral she being the duke’s heir at law’, being his niece.
Somerset bequeathed annuities of £1,000 each to his nephew Heneage Finch, the future 5th earl of Winchilsea, and his sisters Frances Wriothesley, dowager countess of Southampton, and Jane, Lady Clifford. He also left £3,000 to the poor children of Sarum, to be administered by his friends Sir Thomas Mompesson‡ and Sir Richard Howe‡. Howe had been backed by Somerset in the contest for knight of the shire for Wiltshire caused by the accession of Henry Hyde as 2nd earl of Clarendon in 1674.
According to one contemporary, Somerset left Eleanor Oldfield property worth £20,000 pounds.
In March 1676 it was suggested that Somerset’s widow would marry Sir Edward Hungerford‡, when it was noted that she had £8,000–9,000 per annum, ‘which troubles them that thought to have that estate between Lady Clifford and Lady Southampton’.
