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Series 1: 3. A Queen Betrayed

Neil Oliver reveals how the clans plotted against Mary Stewart, Queen of Scots, ultimately leading to the beheading of the most charismatic queen in Scottish history. The tale turns on a brother's plot to overthrow his sister in a ruthless bid for power. James Stewart, Earl of Moray, uses clan power to first control and then rid Scotland of his sister Mary. As she battles conspiracies, plots and counterplots, Mary is trapped in the cruel and tumultuous world of clan blood feuds. After they murder her husband Lord Darnley and Mary flees into the arms of the Earl of Bothwell, the most ruthless of Scotland's clan chiefs, civil war breaks out. Mary escapes to England, never to return again.

Source: BBC 4