Was Mary Queen of Scots tried for treason?

Mary, Queen of Scots, was indeed tried for treason in England in October 1586. The trial took place at Fotheringhay Castle in Northamptonshire and was presided over by a specially appointed commission. The charges against Mary were that she had conspired to assassinate Queen Elizabeth I of England and that she had sought foreign assistance to invade England and depose Elizabeth.

The trial was conducted according to English law, and Mary was provided with legal counsel. However, the outcome was largely predetermined, and Mary was found guilty of treason. She was subsequently sentenced to death and was executed on 8 February 1587.