Title: The Petition And Declaration Of Richard Langhorne (A notorious Papist now in Newgate Condemned for Treason) Presented To His Majesty in Council at Hampton-Court, The 10th of this instant July, 1679. In which He avowedly owneth several Popish Principles and Tenets, relating to what he believeth, and thinketh himself bound to believe by his Popish Principles, in relation to the Duty which he (and it is believed that our English Papists hold the same) is bound to pay to his present Majesty, a true Protestant Prince