Dye analysis and radiocarbon testing suggests a fragment of tartan measuring 55-by-43 centimetres dates back the period between 1500 and 1600. It will go on display as part of the Victoria and Albert Museum Dundee’s tartan exhibition next month.
source https://www.cbc.ca/radio/asithappens/worlds-oldest-scottish-tartan-1.6793911?cmp=rss