The Liber maiolichinus de gestis pisanorum illustribus ("Majorcan Book of the Deeds of the Illustrious Pisans") is a Medieval Latin epic chronicle in 3,500 hexameters, written between 1117 and 1125, detailing the Pisan-led joint military expedition of Italians, Catalans, and Occitans against the "taifa" of the Balearic Islands, in particular Majorca and Ibiza, in 1113–5. It was commissioned by the commune of Pisa, and its anonymous author was probably a cleric. It survives in three manuscripts. The "Liber" is notable for containing the earliest known reference to "Catalans" ("Catalanenses"), treated as an ethnicity, and to "Catalonia" ("Catalania"), as their homeland.