The structure, history, and development of the hundred and its putative Romano-British predecessor, from the mid-4th century to the mid-16th, have been studied in detail by Dr Lee Prosser.
[2] Each hundred had a 'fyrd', which acted as the local defence force and a court which was responsible for the maintenance of the frankpledge system.
[5] The hundred of Keynsham consisted of the ancient parishes of: Brislington, Burnett, Chelwood, Compton Dando, Farmborough, Keynsham, Marksbury, Nempnett Thrubwell, Pensford, Priston, Publow, Queen Charlton, Saltford, Stanton Drew, Stanton Prior, and Whitchurch.
By the 19th century several different single-purpose subdivisions of counties, such as poor law unions, sanitary districts, and highway districts sprang up, filling the administrative role previously played by parishes and hundreds.
Although the Hundreds have never been formally abolished, their functions ended with the establishment of county courts in 1867[8] and the introduction of districts by the Local Government Act 1894.