 Under the command of Sir John Cope, the British Army met with the Jacobites under Charles Edward Stuart at the Battle of Prestonpans in the west of the county in September 1745, with the Jacobite side gaining a significant victory before being defeated at the Battle of Culloden in April 1746.The local government saw major reforms in Scotland by the Local Government (Scotland) Act 1889, which gave Haddingtonshire a county council, replacing earlier functions of the Commissioners of Supply and local Justices of the Peace.In 1975 under the Local Government (Scotland) Act 1973, Scotland's county councils were dissolved and a new system of regional and district councils was created.