In 1514 Archibald, 6th Earl of Angus became the 2nd husband of the Scottish Queen Dowager, Margaret Tudor, and was responsible for the imprisonment of the young James V, during which he virtually ruled Scotland. James V escaped his captor in 1528 and Archibald was forced to flee to England in exile. King James V's hatred for the Douglases extended to Archibald's sister, Lady Janet Douglas of Glamis. 

Under the King's orders, Lady Glamis was accused of witchcraft and treason and was burned at the stake in 1537. 

There is a feeling of overwhelming sadness when one enters the chapel in Glamis Castle and the sounds of hollowing knocking is sometimes heard. The sadness intensifies around the Grey Lady. She can been seen kneeling in front of the altar praying. She is one of Scottish history's most tragic victims. 

Over 400 years ago the 6th Lord of Glamis married Janet Douglas. They had one son John. They lived a peaceful and happy life at Glamis until the of death her husband Lord Glamis, in 1528. 

Lady Janet was born into the Douglas Clan. Her brother was the stepfather of King James V. King James hated his stepfather, obsessed by a deep hatred for anyone who bore the Douglas name, King James would carry out a ruthless vendetta against them. Lady Janet became the center of King James' hatred. Lady Janet no longer had the protection of her marriage to Lord Glamis. 

King James confiscated Glamis Castle for the crown by accusing Lady Janet of witchcraft and of making deadly potions with which to kill him. No one ever doubted that these accusations were not true, but Lady Janet and her son were imprisoned in the dark dudgeons of Edinburgh Castle. Occupying Glamis, King James held court there from 1537 to 1542. 

Throwing Lady Janet into prison was easy for King James, but convicting her of his trumped up charge of witchcraft would be difficult. Her character was impeccable, without blemish, and she was very much respected by everyone who knew her. In order to get the testimony he needed to convict her, the King resorted to torture. Her clansmen and servants were put on the rack and stretched to the point of agony. They finally gave false evidence against her. 

John, her son, who was 16 at the time was forced to watch in horror, before being brutality tortured himself. Using these savage tactics the King got his confessions. Lady Janet was convicted of witchcraft, and she and her son were condemned to death. On July 17, 1537, almost blind from her long imprisonment in the dungeon, Lady Janet Glamis was burned alive at Edinburgh Castle. On lookers fell silent. 

Lady Janet was a beautiful young woman. An eyewitness of the execution described her suffering with great commiseration. Being in the prime of her years, of singular beauty, she endured her suffering, and although being a woman, with a man like courage. Her innocence was never doubted. It is believed that she was not executed for witchcraft, but for the hatred James V had for her brother. 

Her son John, the 7th Lord of Glamis was released after King James V died. Parliament restored Glamis back to him. Sadly upon his return to the castle he found that everything of value had been taken by James V. Before his death, it is said King James V had felt remorse for his actions. 

After Lady Janet's execution the Grey Lady began appearing at the castle. The hollow knocking sound heard is thought to be the hammering of the workmen building the scaffold on which Lady Janet was burned alive. Lady Janet's spirit wanders Glamis Castle and can not only be seen in the chapel but above the clock tower as well.