Wikipedia
Edinburghshire (Parliament of Scotland constituency)
Before the Acts of Union 1707, the barons of the sheriffdom of Edinburgh (also called "Edinburgh principal" to distinguish it from " Edinburgh within the constabulary of Haddington", and now known as Midlothian) elected commissioners to represent them in the Parliament of Scotland and in the Convention of the Estates. After the Union, Edinburghshire returned one Member of Parliament to the House of Commons of Great Britain and later to the House of Commons of the United Kingdom.