Before the Acts of Union 1707, the barons of the shire of Fife elected commissioners to represent them in the Parliament of Scotland and in the Convention of the Estates.
After 1708, Fife was represented by one Member of Parliament in the British House of Commons at Westminster.
List of shire commissioners
During the Commonwealth of England, Scotland and Ireland, the sheriffdoms of Fife and Kinross were jointly represented by one Member of Parliament in the Protectorate Parliament at Westminster. After the Restoration, the Parliament of Scotland was again summoned to meet in Edinburgh.
References
Fife (Parliament of Scotland constituency) Wikipedia(Text) CC BY-SA