Quin’s father and grandfather sat for Kilmallock in the Irish parliament and the former was rewarded with a peerage for support of the Union. On the strength of his proprietary interest, Quin successfully contested county Limerick in 1806 and was considered a supporter of the Grenville ministry. George Ponsonby recommended him to Howick, 23 Dec. 1806:
He is so good as to consult me in his political measures and goes to England to support you. He will not be found a troublesome or interested supporter, for he will neither solicit or accept of office; and as he is a young man of excellent character and heir to a very considerable estate he deserves attention. It will not be a matter of indifference to you to learn that he is a near relation to poor Mr Fox.
Grey mss.
Quin voted with outgoing ministers on Brand’s motion after their dismissal, 9 Apr. 1807, and his unsuccessful opponents at the ensuing election described him as ‘an avowed partisan of the late ministers, and ... under positive engagements to the Roman Catholics’.
Although Quin voted for Catholic relief on 13 and 24 May 1813 (and did so again 30 May 1815, 21 May 1817 and 3 May 1819), he ceased to act with opposition in that Parliament. He had married a Welsh heiress and in 1814 was reported to have aspired to the county seat for Glamorgan, vacated by the death of his father-in-law, whose name he now assumed. But his father’s wish for promotion in the peerage and, above all, his own wish to secure himself in county Limerick, induced him to make his peace with government. On 28 Feb. 1815 he spoke in favour of the revised Corn Laws but, more significantly, on 28 Apr. he justified renewed war against Buonaparte. By 29 Apr. the chief secretary could describe him as having ‘sent in his adhesion’ and a week later as their ‘new ally’. He had ‘local objects’ which the premier asked the chief secretary to satisfy if possible, and apart from the nomination of the next sheriff he was given a sort of promise of the office of custos on Lord Muskerry’s death, but nothing else in that line, though his father was promoted viscount in February 1816.
Wyndham Quin was much embarrassed by government reluctance to take sides in the county election of 1818, complaining ‘I owe the contest to supporting government’.
