Henry Carey succeeded his father as 4th Baron Hunsdon on 17 Apr. 1617.
Dover sided with the king in 1640-42 and the summer of 1642 had joined Charles I in his travels. He was impeached by the Commons in July for deserting Parliament and barred from further sitting in the House of Lords.
Philip Wharton, 4th Baron Wharton, not surprisingly marked Dover as a ‘lord with the king’ when drawing up his list of potential members of the House of Lords in the Convention, but Dover could not sit in the House at all when it first reassembled on 25 Apr. 1660 because the order of 20 July 1642 barring those who had fled to Charles I was not revoked by the House until 4 May 1660. The House sent a letter to Dover on 18 May requesting his attendance and he took his seat in the House the following day. He went on to attend 38 per cent of the meetings of the Convention until its adjournment on 13 Sept., but he only attended six meetings of the Convention in the autumn months of 1660 after it resumed. He came to almost three-quarters of the sittings of the first session of the Cavalier Parliament between 8 May 1661 and the summer adjournment on 30 July. Yet even when attending the House so regularly, he did not take an active part in its proceedings. Wharton recorded that Dover apparently left the House before the vote on the lord great chamberlaincy on 11 July 1661. After Parliament resumed in the autumn Dover was recorded as sick at a call of the House on 25 Nov. 1661 and he did not appear until 2 Dec. and then came to only three more sittings until he stopped coming to the House entirely after 31 Jan. 1662. On 10 Apr. 1662 the house gave Dover leave to be absent, and on that same day the earl’s proxy was registered with Jerome Weston, 2nd earl of Portland, for the last few weeks of that session. He continued to be excused at successive calls of the House and he did not register another proxy until after Portland’s death, when, perhaps on 26 Nov. 1664, and certainly by 30 Dec., he entrusted it to John Egerton, 2nd earl of Bridgwater.
Dover’s only discernible activity in Parliament after 1660 was his effort to save the estate of William Heveningham‡ from the provisions of the legislation against the regicides. In 1655 Dover’s granddaughter had married Heveningham, one of the judges at Charles I’s trial, although not a signatory to the execution warrant, and at the Restoration this regicide was in danger of losing both his life and his estate, estimated to be worth £2,500 a year. The marriage most likely reflected the wishes of Dover’s son, Rochford, who had sided with Parliament and had sat in the House of Lords by a writ of acceleration as Lord Hunsdon from 1640 until it was abolished. Dover was nevertheless eager to have access to the income of the regicide’s estate, and on 5 Sept. 1660 the House moved to support both Dover and Hunsdon in their request to the king to show mercy to Heveningham, ‘in favour only to the preserving his blood from an attaint’. Dover does not appear to have been greatly concerned with saving Heveningham’s life, but he was concerned with the property, and he requested that the estate be granted outright to him in consideration of his services to the royalist cause.
