Marie Therese Charlotte was the eldest of the four children born to Louis XVI and Marie Antoinette. As such she was styled "Child of France" and Madame Royale. She was the only survivor of the nuclear royal family imprisoned in the Temple during the Revolution. Her brother Louis Joseph, the first Dauphin, had died in 1789 during the meeting of the Estates General that directly triggered the fall of the monarchy. Her father, mother, and surrogate mother --- Louis' sister Elisabeth --- were guillotined, with the news of their deaths concealed from Marie Therese until over two years later. He second brother, the seven year-old Louis Charles, became the Dauphin following his brother's death, and Louis XVII after January 21, 1793, and was so treated by his mother until the boy was removed from contact with Marie Antoinette, Madame Elisabeth and Marie Therese. He was systematically tortured until his death in 1795. Though her room was below his at the Temple, Marie Therese had only one more sight of Louis Charles before his death, although they did not speak and he was probably too far gone to recognize his sister. Unlike the Russian Imperial Family's captivity, the French royals suffered a great deal during imprisonment. As the only survivor, Marie Therese represented a powerful piece on the European political chessboard, and both her Uncle Louis XVII and her first cousins the Holy Roman Emperor and Empress vied for control of her person once the Directory released her in a prisoner swap. Ultimately the teenager sided with the Bourbon part of her heritage. She married her first cousin, the duc d'Angouleme. While not a love match, both parties had enormous mutual respect and affection. The union sustained her, and eventually led her to the title of Dauphine, and according to strict legitimists, Queen of France for about an hour after Charles X abdicated in 1830, and before Angouleme also signed the succession over to his nephew. The new "king" was thus the ten year old son of his assassinated brother the duc d'Berry.
Throughout her peripatetic life, Marie Therese displayed enormous self-control in public. She was a thorough royalist who wanted nothing more than a return to the ancien regime and an absolute monarchy. She was thwarted by her Uncle Louis XVIII, who was more clear-eyed about what had been lost. He espoused a national Charter or constitution, presented by the National Assembly after the first abdication by Napoleon. It was a condition of the Bourbon Restoration.
Marie Therese spent the bulk of her life either imprisoned or in exile. By all accounts, she was formidable. Napoleon famously called her the "only man in the Bourbon family" when the Dauphine was the only royal to try and rally opposition during the Hundred Days. Some people found her cold. She was a notoriously arrogant child at Versailles, and that reputation persisted throughout her life. Child of Terror makes the case that this reputation was unfair. Marie Therese transitioned from childhood to a self-possessed young woman with her own inner resources to sustain her in solitude. In an act of will, Marie Therese spent much of the time after Elisabeth's execution (1794) refusing to speak. When visited in the Temple by government officials, she steadily worked needlepoint and refused to look at them. If necessary, the young girl made monosyllabic answers.
Once safely out of France, her personality emerged. While always reserved unless with people she trusted, the duchesse d'Angouleme was lively, loving and very open in letters to old friends and family. There are numerous quotes in the book cribbed from the memoirs of people who met her that cited her charm, carriage --- a distinctive walk was something she shared with her mother --- and ability to work crowds. But she was also the survivor of trauma, and what we might now call PTSD never left her. Marie Therese mourned her dead until her own in 1851.
Susan Nagel has written a very enjoyable if not completely convincing life. It has an excellent depiction of Marie Therese's life from 1779 until her marriage, as well as the Restoration. It doesn't exactly skim over the 21 years after Charles X's abdication, but to be fair, Therese retreated into being a loving great-aunt to Henri, Comte de Chambord, the legitimist heir to the throne of France. Of course, there were other Bourbons in the running. Nagel hates the Orleans branch of the family because of Louis Philippe's treachery to the senior branch, to say nothing of his regicide father. It is yet another moment where you think Nagel has over-identified with her subject. Marie Therese is largely uncritical of her uncle; so is Nagel. Louis XVIII bears some responsibility for the traducing of his brother and sister-in-law in the run-up to July 14th. She was so devoted to the idea of monarchy that she regarded Louis XVIII (who at various times during his own exile was reduced to living in one room flats above German stores) as the King of France, whose wishes she was bound by familial and feudal ties to obey. Indeed, she was far more loyal to her uncles Provence (Louis XVIII) and Artois (Charles X) than they had ever been to Louis XVI.
Her life was filled with drama and trauma, and Nagel certainly captures those elements. But she makes elementary mistakes that either she or a decent editor might have caught. Madame DuBarry was not 16 but 26 when she met the new Dauphine; the infant Sophie Beatrice lived for almost a year, not the few days Nagel assigns her life. The treatment of the Angouleme marriage is somewhat superficial. Again, Nagel makes no secret of what can only be taken as her personal feelings about the men and women in the duchesse's life. She also interrupts Marie Therese's history with that of the "Dark Countess", whom many people identified as the real daughter of Louis XVI. She certainly was not Marie Therese, despite the allegations of a substitute Madame Royale who was sent to Vienna instead. Who was she? No idea after reading the book, but Nagel casually throws in the fact that when she died in 1837, the "Dark Countess" (she never appeared unveiled) had several of Marie Antoinette's personal bibelots and toiletries in her possession. The numerous false Dauphins who inflicted themselves upon Marie Therese throughout her life were disproven by either investigation, or in the case of Naundorff, the most successful, by DNA evidence in the 21st century (a la those women who claimed to be the Grand Duchess Anastasia after the 1918 massacre). Still, she never ceased to nurture hope that by some miracle her brother had survived. His heart did. The doctor who performed Louis Charles' autopsy surreptitiously removed the boy's heart. He and subsequent holders tried to get it into Marie Therese's possession. In 2007 genetic testing revealed it was Louis Charles' heart, and it has now been encased in crystal and buried at the Abbey of St. Denis, the traditional resting place for French royals.
If Nagel is correct, Marie Therese was formed by the furnace of the Revolution. But her importance greatly diminished when she and Angouleme remained childless. Nagel also attributes the possibility of an illegitimate daughter for Louis XVI, who was "adopted" by the Queen and remained part of the immediate family until their forced removal to Paris in October, 1789. She was frantic that this girl be protected, as indeed she was. There are hints that she replaced Marie Therese, but of course none of it can be proven, and indeed the idea is beyond improbable. Louis XVI did not consummate his marriage for eight years, and by temperament he was faithful to his wife. Again, however, Nagel leans upon a purported sexual relationship between Louis and Gabrielle de Polignac, Marie Antoinette's dearest friend and Marie Therese's first governess. This is Louis XVI we're talking about, although Nagel does make the interesting point that Marie Therese saw her father dismiss Fersen from accompanying the family on the doomed escape Fersen had helped arrange. The encounter with his wife's rumored lover cannot have been easy, but the King carried it off with is customary sang-froid.
I enjoyed reading this, which is why I gave it three stars. But you do have to pick your way through a fair amount of polemics. Still, it is the only modern biography of an interesting figure.