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Born on June 21, 1002, Pope Leo IX, originally known as Bruno of Egisheim-Dagsburg, hailed from a noble Alsatian family. He embraced a religious vocation, becoming Bishop of Toul before his papacy. Renowned for his piety and dedication to ecclesiastical reforms, Pope Leo IX played a pivotal role in the Gregorian Reform movement, striving to combat simony and clerical concubinage.