The Scottish Parliament is the unicameral devolved legislature of Scotland, sitting in the Holyrood district of Edinburgh, the country's capital. The Parliament, often referred to as Holyrood, has 129 democratically elected members serving four-year terms under a mixed first-past-the-post and proportional representation system. Thus 73 are elected in one constituency by first-past-the-post, and the remaining 56 are elected by proportional representation in eight electoral regions (7 per region).
The Parliament of Scotland (or "State of Scotland") was originally the legislature of the then independent Kingdom of Scotland. It was created in the 13th century and disappeared when the Kingdom of Scotland merged with the Kingdom of England to form the Kingdom of Great Britain under the terms of the Act of Union in 1707. This amalgamation of the kingdoms was accompanied by a merger of the Scottish Parliament with the Parliament of England to form the British Parliament, which sits at Westminster in London.