The Royal Standard of Scotland, also known as the Banner of the King of Scots, or more commonly the Lion Rampant of Scotland, is the Scottish Royal Banner of Arms. Used historically by the King of Scots, the Royal Standard of Scotland differs from Scotland's national flag, the Saltire, in that its correct use is restricted by an Act of the Parliament of Scotland to only a few Great Officers of State who officially represent the Sovereign in Scotland.
The earliest recorded use of the Lion rampant as a royal emblem in Scotland is by Alexander II in 1222; with the additional embellishment of a double border set with lilies occurring during the reign of Alexander III (1249–1286). This emblem occupied the shield of the royal coat of arms of the ancient Kingdom of Scotland which, together with a royal banner displaying the same, was used by the King of Scots until the Union of the Crowns in 1603, when James VI acceded to the thrones of the Kingdom of England and Kingdom of Ireland. Since 1603, the Lion rampant of Scotland has been incorporated into both the royal arms and royal banners of successive Scottish then British monarchs in order to symbolise Scotland; as can be seen today in the Royal Standard of the United Kingdom.