Mary Queen of Scots received the death sentence from cousin Queen Elizabeth I.
Queen Elizabeth I took much time deciding Mary, Queen of Scots fate because by issuing a death warrant, she was committing femicide.
She had agonized over signing the death warrant for almost two decades. However, on Feb 1, 1587, Queen Elizabeth I ordered the execution of her cousin Mary, the rightful ruler of Scotland and arguably the English Crown. Mary, Queen of Scots, was beheaded on Feb 8, 1587.