The St. Laurent chateau was in the countryside two hours from Paris. The Leslies had been included on the guest list for the signing of the marriage contract and the betrothal ceremony on the twenty-eighth of April, as well as the wedding on May first. They would attend with the five oldest children. The St. Laurents, Lady Stewart-Hepburn, and the two youngest Leslie children would come for the wedding only. The Lindley children, and their Stuart half-brother had been too young to participate in King James's court when Queen Anne had been alive. She had died the year India was eleven. The queen had adored fetes and masques. She had loved art, music, and dancing. Her dour husband had tolerated her follies, as he called them, for love of his Annie. Once the queen had died, however, James's court became less entertaining. It was hoped that the new French queen would enliven Charles Stuart's court even as the late Anne of Denmark had enlivened the court of James Stuart.

Glenkirk and his family were astounded, even openly awed, by the elegant magnificence of the Louvre palace. There was absolutely nothing like it in England. They were met by the two royal English ambassadors, the earl of Carlisle and Viscount Kensington, who quickly escorted them to King Louis's chamber where the signing would take place. First, however, the proper protocol had to be followed. The two ambassadors handed the contract to the king and his lord chancellor to read. This done, the king signified his acceptance of the terms previously agreed upon, and only then was the princess summoned to her brother's presence.

Henrietta-Marie arrived, escorted by the queen mother, Marie di Medici, and the ladies of the court. The princess was garbed in a gown of cloth-of-gold and silver, embroidered all over with golden fleurs-de-lys, and encrusted with diamonds, rubies, emeralds, and sapphires. Once the bride had taken her place, the bridegroom's proxy was called. The due de Chevreuse came into the king's chamber wearing a black-striped suit covered with diamonds.