 It was, according to Pictish legend, founded by Caitt (or Cat), one of the seven sons of the ancestor figure Cruithne.The territory of Cait covered not only modern Caithness, but also southeast Sutherland.The place name "Caithness" derives from "Cait", which is also preserved in the Gaelic name for Sutherland ("Cataibh"), in several specific names within that county and in the earliest recorded name for Shetland ("Inse Catt", meaning "islands of the Cat people").