Guido Cattaneo

Guido Cattaneo (died by 1339) was a Dominican, probably of Tuscan origin, who was archbishop of Arborea from 1312. Pope John XXII empowered him to pursue clergy withholding tithes, even by excommunication.

In 1322 he went to Avignon as Hugh II's ambassador and pledged backing for James II of Aragon's conquest of Pisan Sardinia, on condition that Arborea keep its sovereignty as an Aragonese vassal paying 3000 florins a year. In 1328 he took Hugh's son Peter to Zaragoza to swear vassalage to Alfonso IV. When Peter became judge in 1335, Guido served as his chancellor.

His one known writing, a treatise defending the pope's line on evangelical poverty, is the judgeship's only surviving 14th-century work. He last appears in Hugh II's will of 1335 and was dead by 1339.