This is a collection of letters written by Saint Catherine of Siena (1347-1380), a highly influential figure in the history of the Catholic Church. This edition features a proemio (preface) and notes by Niccolò Tommaseo (1802-1874), an Italian patriot, linguist, and writer. "Lettere" provides insights into Catherine's spiritual and political thought, her role in the religious life of her time, and the historical context of 14th-century Italy. Her letters are renowned for their directness, passion, and spiritual wisdom. This edition offers valuable historical context through Tommaseo's notes and preface, making it an important resource for scholars and anyone interested in the life and writings of Saint Catherine.

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