disappear suddenly, a process of Gaelicisation (which may have begun generations earlier) was clearly underway during the reigns of Caustantín and his successors. By a certain point, probably during the 11th century, all the inhabitants of northern Alba had become fully Gaelicised Scots, and Pictish identity was forgotten. Later, the idea of Picts as a tribe was revived in myth and legend. Kings and kingdoms The early history of Pictland is unclear. In later periods multiple kings existed, ruling over separate kingdoms, with one king, sometimes two, more or less dominating their lesser neighbours. De Situ Albanie, a late document, the Pictish Chronicle, the Duan Albanach, along with Irish legends, have been used to argue the existence of seven Pictish kingdoms. These are: Cait, or Cat, situated in modern Caithness and Sutherland; Ce, situated in modern Mar and Buchan; Circin, perhaps situated in modern Angus and the Mearns; Fib, the modern Fife; Fidach, location unknown, but possibly near Inverness; Fotla, modern Atholl (Ath-Fotla); and Fortriu, cognate with the Verturiones of the Romans, recently shown to be centred on Moray More small kingdoms may have existed. Some evidence suggests that a Pictish kingdom also existed in Orkney. De Situ Albanie is not the most reliable of sources, and the number of kingdoms, one for each of the seven sons of Cruithne, the eponymous founder of the Picts, may well be grounds enough for disbelief. Regardless of the exact number of kingdoms and their names, the Pictish nation was not a united one. For most of Pictish recorded history the kingdom of Fortriu appears dominant, so much so that king of Fortriu and king of the Picts may mean one and the same thing in the annals. This was previously thought to lie in the area around Perth and southern Strathearn; however, recent work has convinced those working in the field that Moray (a name referring to a very much larger area in the High Middle Ages than the county of Moray) was the core of Fortriu. The Picts are often said to have practised matrilineal kingship succession on the basis of Irish legends and a statement in Bede's history. The kings of the Picts when Bede was writing were Bridei and Nechtan, sons of Der Ilei, who indeed claimed the throne through their mother Der Ilei, daughter of an earlier Pictish king. In Ireland, kings were expected to come from among