On the 13th of March the Russian ambassador, Count Woronzo, following in the train of these marked civilities, invited them to a princely banquet, which was attended by all the aristocracy of London, at his mansion in Harley Street; and on the 13th of March his Royal Highness the Prince of Wales honored them by an invitation to Carlton House to meet all the foreign ambassadors. The Orleans princes were now fully introduced to fashionable life in London. Their presence was deemed essential to the completeness of any soiree or banquet. The Marchioness of Salisbury, then the arbitress in London of fashion and elegance, invited the princes to meet at her house four hundred guests of the highest rank and distinction, among whom was the Prince of Wales. Then the Lady Mayoress of the city, Lady Harvey Combe, threw open to them Egyptian Hall in as magnificent an entertainment as the times could furnish. Immediately following this brilliant scene, the Duke of Clarence, subsequently William IV., invited them to a dinner-party, which in many respects surpassed all which had preceded it in splendor. All these people who thus feted them were combining their energies to overthrow revolutionary principles in France, and to reinstate the Bourbons. At this time the British Cabinet was preparing an armed force for the invasion of France by a descent on the southern coast. The report was circulated that the three Orleans princes were to assume the white cockade and accompany this military expedition against their native country. At the same time, the Bourbon princes renewed their solicitations to the Orleans princes to range themselves, with arms in their hands, under the standard of emigration. But the great victory of Marengo just then took place, which threw into the power of the First Consul all of upper Italy, and compelled the utterly discomfited Austrians to withdraw from the British alliance. It was a dark hour for the Royalist cause in France. The exiled princes, who found but little in the festivities of London to alleviate their world-weariness, or to cheer them in the peculiar embarrassments and trials of their position, after several minor adventures, withdrew to their retreat in Twickenham, where they endeavored to seclude themselves from observation and from all participation in public affairs. The Duke of Orleans devoted himself to the study of English institutions, visiting the prominent establishments of learning and of industry. The irreproachable character of this virtuous prince, his high intellectual culture, dignified bearing, amiable disposition, and persistent refusal to involve himself in any intrigues, secured for him general admiration. Months of tranquillity, almost of happiness, glided away. But sorrow is the doom of man. The Duke of Orleans had not yet drained the cup which was prepared for his lips.