under Louis XV. By the time of his death in 1774, Calvinism had been nearly eliminated from France. Persecution of Protestants officially ended with the Edict of Versailles, signed by Louis XVI in 1787. Two years later, with the Revolutionary Declaration of the Rights of Man and of the Citizen of 1789, Protestants gained equal rights as citizens. Etymology A term used originally in derision, Huguenot has unclear origins. Various hypotheses have been promoted. The term may have been a combined reference to the Swiss politician Besançon Hugues (died 1532) and the religiously conflicted nature of Swiss republicanism in his time. It used a derogatory pun on the name by way of the Dutch word (literally 'housemates'), referring to the connotations of a somewhat related word in German ('Confederate' in the sense of 'a citizen of one of the states of the Swiss Confederacy'). Geneva was John Calvin's adopted home and the centre of the Calvinist movement. In Geneva, Hugues, though Catholic, was a leader of the "Confederate Party", so called because it favoured independence from the Duke of Savoy. It sought an alliance between the city-state of Geneva and the Swiss Confederation. The label Huguenot was purportedly first applied in France to those conspirators (all of them aristocratic members of the Reformed Church) who were involved in the Amboise plot of 1560: a foiled attempt to wrest power in France from the influential and zealously Catholic House of Guise. This action would have fostered relations with the Swiss. O. I. A. Roche promoted this idea among historians. He wrote in his book, The Days of the Upright, A History of the Huguenots (1965), that Huguenot is: a combination of a Dutch and a German word. In the Dutch-speaking North of France, Bible students who gathered in each other's houses to study secretly were called ("housemates") while on the Swiss and German borders they were termed , or "oath fellows", that is, persons bound to each other by an oath. Gallicised into , often used deprecatingly, the word became, during two and a half centuries of terror and triumph, a badge of enduring honour and courage. Some disagree with such double or triple non-French linguistic origins. Janet Gray argues that for the word to have spread into common use in France, it must have originated there in French. The "Hugues hypothesis" argues that the name was derived by association with