The Edrington group, whose brands include The Macallan and Famous Grouse, is said to be one of Scotland's biggest private manufacturing companies and exports five million cases a year.

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The research was commissioned by Famous Grouse whisky and found 5% of the people surveyed said they had no idea who the country's patron saint was.

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And also the Edrington Group, based in Glasgow, with brands including Famous Grouse, Macallan and Highland Park.

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