Scottish clans (from Scottish Gaelic clann, "chilren"), give a sense of identity and shared descent to people in Scotland and to their relations throughout the world, with a formal structure of Clan Chiefs officially registered with the court of the Lord Lyon, King of Arms which controls the heraldry and Coat of Arms. Each clan has its own tartan patterns, usually dating to the 19th century, and members of the clan may wear kilts, skirts, sashes, ties, scarves, or other items of clothing made of the appropriate tartan as a badge of membership and as a uniform where appropriate.