The Queen of Navarre was very anxious for the safety of her son, for she heard that he was accompanying Catherine and Charles IX on a long progress through the kingdom. She herself was the object of Catholic animosity, and the King of Spain destined her for a grand Auto-da-fé, longing to make an example of so proud a heretic. She believed that her son had received the root of piety in his heart while he was under her care, but she doubted whether that goodly root would grow in the corrupt atmosphere which surrounded the youthful Valois princes. Henry of Navarre disliked learning, and was fond of active exercise. His education was varied after he came to court, and he learnt to read men well. In later life he was able to enjoy the most frivolous pastimes and yet could endure the privations of camp life without experiencing discomfort.

Louis de Bourbon, Prince de Condé, was killed at the battle of Jarnac, and Henry de Bourbon became the recognized head of the Huguenot party. He took an oath never to abandon the cause, and was hailed by the soldiers in camp as their future leader. The Queen of Navarre clad him in his armour, delighted that her son should defend the reformed religion. She saw that he was brave and manly, if he were not a truly religious prince, and she agreed with the loudly expressed opinion of the populace that he was more royal in bearing than the dissolute and effeminate youths who spent their idle days within the palaces of the Louvre and the Tuileries.

The country was growing so weary of the struggle that the scheme for a marriage between Henry of Navarre and Margaret of Valois was hailed with enthusiasm. If Catholic and Huguenot were united there might be peace in France that would add to the prosperity of the nation. Catherine de Medici had intended originally that her daughter should marry the Catholic King of Portugal, and was angry with Philip II of Spain because he had done nothing to assist her in making this alliance. Charles IX longed to humble Philip, who was indignant that the "heretics" had been offered freedom of worship in 1570, and had expressed his opinion rather freely. Therefore the Valois family did not hesitate to receive the leader of the Protestants, Henry de Bourbon, whose territory extended from the Pyrenees to far beyond the Garonne.

The Queen of Navarre disliked the match and was suspicious of the Queen-Mother's motives. She feared that Catherine and Catherine's daughter would entice Henry into a gay, dissolute course of life which would destroy the results of her early training, and she could not respond very cordially to the effusive welcome which greeted her at the court when she came sadly to the wedding.

The marriage contract was signed in 1571, neither bride nor bridegroom having much choice in the matter. Henry was probably dazzled by the brilliant prospects that opened out to one who was mated with a Valois, but he was only nineteen and never quite at ease in the shifting, tortuous maze of diplomacy as conceived by the mind of Catherine de Medici. Margaret was a talented, lively girl, and pleased with the fine jewels that were given her. She did not understand the reasons which urged her brother Charles to press on the match. He insisted that it should take place in Paris in order that he might show his subjects how much he longed to settle the religious strife that had lately rent the kingdom. It was a question, of course, on which neither of the contracting parties had to be more than formally consulted.

The Queen of Navarre died suddenly on the eve of the wedding, and her son, with 800 attendants, entered the city in a mourning garb that had soon to be discarded. Gorgeous costumes of ceremony were donned for the great day, August 18th, 1572, when Margaret met her bridegroom on a great stage erected before the church of Notre Dame.

Henry of Navarre could not attend the Mass, but walked in the nave with his Huguenot friends, while Margaret knelt in the choir, surrounded by the Catholics of the party. Admiral Coligny was present, the stalwart Huguenot who appealed to all the finest instincts of his people. He had tried to arrange a marriage between Elizabeth of England and Henry of Anjou, the brother of the French King, but had not been successful, owing to Elizabeth's politic vacillation. He was detested by Catherine de Medici because he had great power over her son, the reigning monarch, whom she tried to dominate completely. A dark design had inspired the Guise faction of late in consequence of the Queen's enmity to the influence of Coligny. It was hinted that the Huguenot party would be very weak if their strongest partisan were suddenly taken from them. All the great Protestant nobles were assembled in Paris for the marriage of Navarre and Margaret of Valois. They were royally entertained by the Catholic courtiers and lodged at night in fine apartments of the Louvre and other palaces. They had no idea that they had any danger to fear as they slept, and would have disdained to guard themselves against the possible treachery of their hosts. They might have been warned by the attempted assassination of Admiral Coligny, who was wounded by a pistol-shot, had not the King expressed such concern at the attempt on the life of his favourite counsellor. "My father," Charles IX declared when he came to the Admiral's bedside, "the pain of the wound is yours, but the insult and the wrong are mine."

The King had the gates of Paris shut, and sent his own guard to protect Coligny. He was weak, and subject to violent gusts of passion which made him easy to guide, if he were in the hands of an unscrupulous person. His mother, who had plotted with Guise for the death of Coligny, pointed out that there was grave danger to be feared from the Protestants. She made Charles declare in a frenzy of violence that every Huguenot in France should perish if the Admiral died, for he would not be reproached with such a crime by the Admiral's followers.

The bells of the church nearest to the Louvre rang out on the Eve of St Bartholomew—they gave the signal for a cruel massacre. After the devout Protestant, Coligny, was slain in the presence of the Duke of Guise, there was little resistance from the other defenceless Huguenot nobles. They were roused from sleep, surprised by treacherous foes, and relentlessly murdered. It was impossible to combine in their perilous position. Two thousand were put to death in Paris, where the very women and children acted like monsters of cruelty to the heretics for three days, and proved themselves as cunning as the Swiss guards who had slain the King's guests on the night of Saint Bartholomew. A Huguenot noble escaped from his assailants and rushed into Henry's very bridal chamber. He cried, "Navarre! Navarre!" and hoped for protection from the Protestant prince against four archers who were following him. Henry had risen early and gone out to the tennis-court, and Margaret was powerless to offer any help. She fled from the room in terror, having heard nothing previously of the Guises' secret conspiracy.