The figure known for her role in the French Revolution and as Marie Antoinette's rival is Madame de Staël. A prominent intellectual and writer in the late 18th and early 19th centuries, she was an influential figure in the discussions around the revolution. Despite her aristocratic background, de Staël was critical of the monarchy and the excesses of the regime, advocating for political and social reforms. Her writings, which spanned various subjects, including politics, philosophy, and literature, emphasized the importance of liberty and individual rights. De Staël’s bold critiques and salons made her a key player in revolutionary thought, despite facing political exile later due to her opposition.