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Matteo I Visconti (born Aug. 15, 1250, Invorio, Lombardy—died June 24, 1322, Milan) was the early head of the powerful dynasty of the Visconti, who for almost two centuries ruled Milan. Installed as captain of the people in 1287 with the help of his great-uncle Ottone Visconti, archbishop of Milan, Matteo succeeded in extending his six-month term to five years and in being several times reelected. In 1294 the German king Adolf of Nassau made...