The month of December accordingly passed away without the domestic discord which must have arisen had the Queen been less happily ignorant of her real position; but it was nevertheless fated to be an eventful one. The death of M. de la Rivière, the King's body-surgeon, a loss which was severely felt by Henry, was succeeded by the execution of M. de Merargues[310], whose conspiracy to deliver up Marseilles to the Spaniards was revealed to the monarch by Marguerite; and who, tried and convicted of _lèse-majesté_, was decapitated in the Place de Grève, his body quartered and exposed at the four gates of the capital, and his head carried to Marseilles, and stuck upon a pike over the principal entrance to the city; while, on the very day of his execution, as the King was returning from a hunt and riding slowly across the Pont Neuf, at about five in the afternoon, a man suddenly sprang up behind him and threw him backwards upon his horse, attempting at the same time to plunge a dagger which he held into the body of his Majesty. Fortunately, however, Henry was so closely muffled in a thick cloak that before the assassin could effect his purpose the attendants were enabled to seize him and liberate their royal master, who was perfectly uninjured. The consternation was nevertheless universal; nor was it lessened by the calmness with which, when interrogated, the assassin declared that his intention had been to take the life of the sovereign. It was soon discovered, however, by the incoherency of his language that he was a maniac; and although many of the nobles urged that he should be put to death as an example to others, the King resolutely resisted their advice, declaring that the man's family, who had long been aware of his infirmity, were more to blame than himself; and commanding that he should be placed in security, and thus rendered unable to repeat any act of violence. He was accordingly conveyed to prison, where he shortly afterwards died.