Bentivoglio, the name of an Italian family once sovereign in Bologna, and claiming descent from a natural son of the emperor Frederick II. Giovanni was proclaimed lord of Bologna in 1401, but was expelled and killed the next year. Annibale, his grandson, was placed at the bead of the government there in 1488, and was murdered by a rival faction in 1445. Giovanni, his son, was for 44 years at the head of the commonwealth, adorned Bologna with several line buildings, and collected many manuscripts, paintings, and statues. In 1506 he fled with his family to the Milanese territory to escape the army of Pope Julius II., and died in 1508. The French placed his two sons at the head of affairs in 1511, but in 1512 Bologna again surrendered to the pope, and the Bentivoglios emigrated to Ferrara, Several members of the family afterward attained distinction. I. Errole, grandson of Giovanni, born in Bologna in 1506, died in Venice, Nov. 6,1573. He lived in Ferrara, and was employed in diplomatic affairs by the princes of Este. He wrote several satires and comedies, and was distinguished as a lyric poet.

His poetical works were published in Paris in 1719. II. Gnido, born in Ferrara in 1579, died Sept. 7, 1644. In 1621 he was created cardinal, was nuncio to France, and after his return was intrusted by Louis XI11, with the care of French affairs in Rome. He was the chief adviser of Pope Urban VIII., whose successor it was generally believed he would be; but he died at the opening of the conclave. He left several works, of which a complete edition was published in Venice in 1668; among them were letters and memoirs, "A History of the Civil Wars of Flanders," and "An Account of Flanders." III. Cornello, born in Ferrara in 1668, died in Rome, Dec. 30,1732. Under Clement XI. he was archbishop of Carthage and nuncio at Paris, where he showed great zeal in behalf of the bull Unigenituz, in consequence of which he received many favors from Louis XIV. He was created cardinal in 1719, and was afterward nuncio in Spain. He was a patron of literature, and was learned in the law and sciences, as well as in theology.