The Sarrentini are the Istalian sub-group living on the Sarrentina Peninsula, and they share numerous cultural characteristics with the other Istalian sub-group known as Alarians, as well as being characterized by numerous distinctive features.
In addition to ancient Selucian influence, which also characterizes Alarians, the Sarrentini were subject to different other cultural influences, most significantly Augustan and Majatran. Augustan rule also brought with it significant albeit indirect Kalopian influence. The Majatran element of Sarrentine culture was brought by two major periods of rule by Majatran-speaking polities, the Ahmadi Caliphate and later the Empire of Quanzar, the latter of which gave the name with which for several centuries was known the peninsula and later whole Istalia. Majatran rule also brought Ahmadism to the peninsula, and for a long time it was a prominent religion in the peninsula, going so far as to surpass Hosianism in terms of the number of faithful under the centuries of the Quanzar rule, although today it is practiced by a sizeable minority of the population, while the Hosianism regain its majoritarian role, with the Sarrentini practicing mostly the Theognosian Rite of the Patriarchate of Istalia, Solentia, and Quanzar.