Mary Stuart aka Mary Queen of Scots.
Mary, queen of Scots, c1565.
Mary Queen of Scots was executed at Fotheringay Castle on this day in 1587, after being held prisoner by her cousin Elizabeth I of England for 18 years. Mary had originally sought sanctuary in England after her rule in Scotland ended in disaster but Elizabeth had produced no Protestant heirs to the throne of England and she regarded Mary, next in line to the throne and a Catholic, as a threat to the future of her kingdom. Elizabeth is said to have cried with remorse after Mary was beheaded.