The Order of the Thistle is a prestigious chivalric order in Scotland, established in the 15th century. It is one of the oldest orders of knighthood in the United Kingdom and is dedicated to the patron saint of Scotland, Saint Andrew. The order's emblem features a thistle, which is a symbol of Scotland. Membership in the Order of the Thistle is limited to 16 knights, including the reigning monarch, currently King Charles III. The order is known for its ceremonial events, including an annual service at St. Giles' Cathedral in Edinburgh, where members gather to honor their heritage and commitment to Scotland.