'She was naturally intrepid and of a great courage. She appeared to have been born with inclinations towards good, with an air of complete indifference, with a keen and penetrating intellect, forming clear views of things, and expressing them in words few and fit but very precise; wonderfully ready in finding expedients for getting out of a difficulty, and quick to make up her mind upon the most embarrassing questions; frivolous, moreover, with no application, uneven and inconstant, becoming impatient if the same subject were often talked about. 'Her soul had something naturally great--a composure in face of the most unexpected emergencies, a firmness that nothing could move, a resolution to await and even suffer death if need be. 'She had thick and beautiful chestnut hair, with comely and well-rounded features--her eyes blue, tender, and of perfect beauty, her skin extraordinarily white, her nose well-shaped enough; nothing in her countenance was unpleasing. 'Sweet as her face naturally appeared, when some vexatious idea crossed her imagination she showed it plainly by a grimace that might at first sight scare you; and from time to time I noticed contortions that bespoke disdain, indignation, and scorn. 'She was of a very slight and dainty figure.' To the Marquis de Brinvilliers luxury and large expenditure had become second nature; he loved gaming and pleasure generally; and his marriage was very far from banishing his joyous habits. In 1659 he formed a close intimacy with a certain Godin, known more often as Sainte-Croix, a captain of horse in the Tracy regiment, originally from Montauban, and said to be a by-blow of a noble Gascon family. Sainte-Croix was young and handsome; 'endowed,' says a memoir of the time, 'with all the advantages of intelligence, and perhaps, too, with those qualities of heart under whose empire a woman rarely fails, in the long-run, to fall.' In after days, Maître Vautier had to sketch the portrait of Sainte-Croix in the course of an address before the Parlement. 'Sainte-Croix,' he said, 'was in poverty and distress, but he had a rare and singular genius. His countenance was prepossessing, and gave promise of intelligence. Such indeed he had, and of such sort as to give universal pleasure. He took his pleasure in the pleasure of others; he entered into a religious scheme as joyfully as he accepted the suggestion of a crime. Keenly sensitive to insult, he was susceptible to love, and in love jealous to madness, even of persons on whom public debauchery assumed rights that were not unknown to him. His extravagance was amazing, and supported by no occupation; for the rest, his soul was prostituted to every form of crime. He dabbled also in external piety, and it has been claimed that he wrote devotional books. He spoke divinely of the God in whom he did not believe, and favoured by this mask of piety, which he never removed save with his friends, he appeared