A detailed statement of the Crown revenues from the island, drawn up parish by parish. The Extentes of 1274,1331,1528,1607 and 1749 have been printed by La Société Jersiaise. The Extentes are a valuable reference for genealogists, showing as they do together with Assize Rolls from the same era, the emergence of most of Jersey's traditional family names.
All six extentes from 1274 to 1749 have been digitised and appear on the Société website. Follow the links below