Before the Acts of Union 1707, the barons of the shire of Linlithgow elected commissioners to represent them in the unicameral Parliament of Scotland and in the Convention of the Estates.
From 1708 Linlithgowshire was represented by one Member of Parliament in the House of Commons of Great Britain.
List of shire commissioners
References
Linlithgowshire (Parliament of Scotland constituency) Wikipedia(Text) CC BY-SA