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. As a state flag, 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. It is also used in an official capacity at Royal residences in Scotland when The Sovereign is not present.
The red Lion rampant, first used in 1222 during the reign of Alexander II, appears on a yellow background surrounded by a double border, itself having a motif of alternating heraldic lilies. As in the case of the Royal coat of arms of the ancient Kingdom of Scotland, a Royal banner consisting of this design alone 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 in both the Royal arms and Royal banners of successive Scottish than British monarchs in order to symbolize Scotland, as can be seen, today in the Royal Standard of the United Kingdom. Although now officially restricted to use by Royal representatives and at Royal residences, the Banner of the King of Scots continues to be one of Scotland's most recognizable symbols.