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Abbé Sieyès had a lifespan of 88 years, born on May 3, 1748, in Fréjus, France, and passing away on June 20, 1836, in Paris, France. A prominent figure during the French Revolution, he was known for his contributions to political theory and the establishment of the French First Republic. Remembered for his intellectual influence and participation in shaping the course of modern political thought, Sieyès left a lasting impact.