Sir George Hungerford (EN189 in the Surnames Database), Knight and Baronett, married Lady Frances Seymour (EN189wife) on 3 Apr 1665. This is the record of that marriage.
Source England, Phillimore Marriage Registers, 1531-1913 Image; Volume: Wiltshire marriage registers, vol 4; Parishes: Preshute 1606-1812, Urchfont 1538-1812, Stert 1579-1812, Colerne 1661-1812; County: Wiltshire; Image number: 27; Image count: 165; Copyright: Images © Eneclann; Record set: England, Phillimore Marriage Registers, 1531-1913; Category: Birth, Marriage & Death (Parish Registers); Subcategory: Marriages & divorces; Collections from: United Kingdom. It reports: Sr. George Hungerford, of Caddenham, Knight & Baronett, & the Lady Frances Seymour, daughter to the Right Honourable Charles Lord Seymour 3 Apr. 1665.
See the Amy Griffiths Family Tree on Ancestry.com accessed on January 23, 2016. It reports: George (Sir) Hungerford. Born 1634 in Bremhill, Wiltshire, England. Died May 1712 at Bremhill, Wiltshire, England. Parents: Edward Sir Hungerford 1600–1667 Susanna Prettyman 1602–1693. Spouse & Children: Frances (Lady) Seymour 1636–1715 Ann Hungerford 1683–1722.