Edinburgh Castle is a fortress which dominates the skyline of the city of Edinburgh

Edinburgh

Edinburgh is the capital city of Scotland, the second largest city in Scotland, and the eighth most populous in the United Kingdom. The City of Edinburgh Council governs one of Scotland's 32 local government council areas. The council area includes urban Edinburgh and a rural area...

, Scotland

Scotland

Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

, from its position atop the volcanic Castle Rock. Human habitation of the site is dated back as far as the 9th century BC, although the nature of early settlement is unclear. There has been a royal castle here since at least the reign of David I

David I of Scotland

David I or Dabíd mac Maíl Choluim was a 12th-century ruler who was Prince of the Cumbrians and later King of the Scots...

 in the 12th century, and the site continued to be a royal residence until the Union of the Crowns

Union of the Crowns

The Union of the Crowns was the accession of James VI, King of Scots, to the throne of England, and the consequential unification of Scotland and England under one monarch. The Union of Crowns followed the death of James' unmarried and childless first cousin twice removed, Queen Elizabeth I of...

 in 1603.