A question on early Scottish history? Woolf in 2006 correctly identifies Fortriu with Moray, which I believe is clearly show in its usage in the Prophecy of Berchán. Now with Fortriu move from Southern Pictland there is a lack of kings in Southern Pictland. Accept for those which historians have associated with Dal Riadan lineages. (I also note that the late 9th century Fortriu kings are also identified as being from a Dal Riata line.) One of these Dal Riadan kings located in Southern Pictland is the 7th century Bridei son of Der-ilei, King of the Picts. He has been identified as being Nechtan son of Dargart son of Fingin son of Eachach son of Loingsech son of Comgall, hence from the Cenel Comgaill line of of Dal Riada. Vita Sancti Servani, says that St Serf founded a church at Culross within the time of Bridei son of Der-Ilei of Cenel Comghaill. The life identifies the location of Culross thus: “cuillenn ros hi sraith erinn hi comgellaibh etir sliabh n-ochel 7 mur n-guidan” from Leabhar Bhaile an Mhóta “Culros in Strathearn (Ireland’s Valley) in Comgall’s peoples (thought as being Cenel Comgaill) between the Ochill Hills and the Forth of Firth.” (From the Book of Ballymote and the Book of Lecan.) So at some point the land which the King of the Picts, Bridei son of Der-Ilei, who is of Cenel Comgaill lineage, grants to St Serf belonged to the people of "Cenel Comgaill". With references to Cenel Comgaill disappearing soon after Bridei reign. I wonder if the land was taken at around the time of his reign, based on the assumption that at only during his time were there descendants of Cenel Comgaill powerful enough to claim land? It seems Bridei son of Der-Ilei and his brother may represent a Dal Riata takeover of portions of the lands of the Southern Picts? Additional in the first half of the 8th century, assuming the identification of Alpin mac Eochaid mac Domangart is correct, the Cenel Gabhrain are making their first appearance in Gowrie (they seem to replace Cenel Comgaill in the records). Aplin is defeated by Oengus, king of Fortriu (i.e. Moray), around Moncrieff in Gowrie. Gowrie has been suggested by Dr Woolf to be from Cenel Gabhrain to which Alpin mac Eochaid mac Domangart belonged. This seems supported by the fact that kindred of Alpin’s great uncle Fergus Goll came to occupy Gowrie and another great uncle Connal Cerr’s kindred occupied Fife. The "royal line" of Cenel Gabhrain appear as the 8th century as rulers of Fortriu, after the dynasty of Oengus has died out. (Thereby happily fulling a prophecy made by St Patrick as per the Tripartite Life of St Patrick - dated to either the 8th century or 9th century. Which seems to follow a literary tradition of author using know facts of the day and making today's reality the result of blessing or curses accredited to St Patrick or even the gods Lugh or Gobhan.) Did the Dal Riada rule Southern Pictland from a earlier time than currently accepted?