The Chianina (pronounced kee-a-nee-na) may well be one of the oldest breeds of cattle in existence. They were praised by the Georgic poets, Columella and Vergil, and were the models for Roman sculptures.
The breed originated primarily in the west central part of Italy and was found in a wide variety of environmental conditions. Because of this, the cattle vary in size and type from region to region. The largest representatives of the breed, from the plains of Arezzo and Siena, have supplied most of the foundation stock that has been used in the United States and Canada. The name comes from the Chiana Valley in the province of Tuscany in Central Italy.
http://www.ansi.okstate.edu/breeds/cattle/chianina/