Marie Antoinette gave birth in public
To ensure that the infant was real and that no imposters could be put into the royal crib, Louis XIV, the Sun King, ordered that all French queens and princesses give birth in public. Therefore, when Marie Antoinette finally gave birth to a child after eight years of marriage to Louis XVI, the entire city of Versailles turned out to see the momentous occasion.
The person of the moment was Louis. He used his bulk to force his way through to the windows and threw open the shutters, which had previously stopped up due to the draftiness of the chamber, realizing that his queen was in dire need of fresh air. The Queen was revived when the chilly air entered the room, and she gave birth to Marie Therese, who was given the nickname "Madame Royale" and was named after her mother.
According to legend, Marie Antoinette's mother insisted on Schonbrunn Palace's windows remaining open during the winter because she thought the chilly air would have a calming effect. Marie Antoinette may have been transported back to her time being raised by her mother subconsciously, which was enough to reenergize her frail body.