The House of Antelminelli was a noble family from Lucca. The family was involved in the struggle between the Guelph and the Ghibellini parties in Tuscany. The leader of the family in the early 14th century was Castruccio Castracani a famous Ghibelline leader. Serving under the Ghibelline chief, Uguccione della Faggiuola, he was elected lord (as lifelong consul) of Lucca on June 12, 1316, displacing the Quartigiani family, and was appointed Duke of Lucca, Pistoia, Volterra and Luni by emperor Frederick of Austria. In the following generation the power of the family collapsed in the general success of the Guelfs.