John Downes (regicide) being found guilty of regicide, John Downes was condemned to death in October 1660 but the sentence was commuted to life imprisonment because he had tried to intervene on the King's behalf and only signed the death warrant after being intimidated by the other commissioners. Downes spent the rest of his life a prisoner in the Tower of London. John Downes (regicide) Colonel John Downes (1609 – c. 1666) was a commissioner who signed the death warrant of Charles I of England. After the English Restoration he was found guilty of regicide and was imprisoned until he died. John Downes;
Regicide killed in battle by their subjects (for example Richard III), but none of these deaths are usually referred to as regicide. The word regicide seems to have come into popular use among foreign Catholics when Pope Sixtus V renewed the papal bull of excommunication against the "crowned regicide" Queen Elizabeth I, for—among other things—executing Mary, Queen of Scots, in 1587. Elizabeth had originally been excommunicated by Pope Pius V, in "Regnans in Excelsis", for converting England to Protestantism after the reign of Mary I of England. The defeat of the Spanish Armada and the "Protestant Wind" convinced most English people