On 08 Jan 1847 Prince George Hanover 2nd Duke Cambridge (age 27) and Sarah Fairbrother (age 32) were married at St John's Church, Clerkenwell [Map]. The marriage was in contravention of the 1772 Royal Marriages Act by which he was required to seek the permission of the monarch. The marriage was considered illegal. He the son of Adolphus Hanover 1st Duke Cambridge (age 72) and Princess Augusta Hesse-Kassel Duchess Cambridge (age 49). He a grandson of King George III of Great Britain and Ireland.