Castriccio-Castracani, a leader of the Ghi-bellinesin Italy, born in Lucca about 1282, died Sept. 3, 1328. He was a member of the noble Antelminelli family, and in childhood was banished with his relatives by the Guelphs. His military exploits in France, England, and Lom-bardy led to his being placed at the head of the Ghibellines in Lucca; but his ally, Uguc-cione de la Faggiola of Pisa, after having aided him in putting down the Guelphs, sacked Lucca, and put him in prison, from which he was released by the people rising against Uguccione and expelling him and his followers. Castruc-cio was elected governor of Lucca, and during the 15 years of his administration was engaged in warfare with Florence, with a view of establishing his supremacy over the Ghibellines of Tuscany. Louis IV., emperor of Germany, rewarded his services by investing him with the rank of duke of Lucca, count of the Late-ran, and Roman senator; but Pope Boniface VIII. resented his victories over the Guelphs by excommunicating him shortly before his death.

Nicolo Negrini (Modena, 1496), Wie-land (Leipsic, 1779), and Manuzzi (Rome, 1820) have published works relating to him; but the most celebrated is that by Machiavelli (French translation by Dreux du Radier, La vie de Castruccio-Castracani, Paris, 1753).