Result of ethnological inquiry 226 The four kingdoms 227 Scottish kingdom of Dalriada 229 Kingdom of the Picts 230 Kingdom of the Britons of Alclyde 235 Kingdom of Bernicia 236 The Debateable lands 237 Galloway 238 A.D. 606. Death of Aidan, king of Dalriada; Aedilfrid 239 conquers Deira, and expels Aeduin A.D. 617. Battle between Aeduin and Aedilfrid 239 A.D. 627. Battle of Ardcorann between Dalriads and Cruithnigh 241 A.D. 629. Domnall Breac becomes king of Dalriada 242 A.D. 631. Garnaid, son of Wid, succeeds Cinaeth mac Luchtren 242 as king of the Picts A.D. 633. Battle of Haethfeld. Aeduin slain by Caedwalla and 243 Penda A.D. 634. Battle of Hefenfeld. Osuald becomes king of 244 Northumbria A.D. 635. Battle of Seguise, between Garnait, son of Foith, 246 and the family of Nectan A.D. 634. Battle of Calathros, in which Domnall Breac was 247 defeated A.D. 638. Battle of Glenmairison, and siege of Edinburgh 249 A.D. 642. Domnall Breac slain in Strathcarron 250 A.D. 642. Osuald slain in battle by Penda 252 A.D. 642-670. Osuiu, his brother, reigns twenty-eight years 253 Dominion of Angles over Britons, Scots, and Picts 256 A.D. 670. Death of Osuiu, and accession of Ecgfrid his son 260 A.D. 672. Revolt of the Picts 260 A.D. 678. Wilfrid expelled from his diocese 262 Expulsion of Drost, king of the Picts, and accession of 262 Brude, son of Bile A.D. 684. Ireland ravaged by Ecgfrid 264 A.D. 685. Invasion of kingdom of Picts by Ecgfrid; defeat and 265 death at Dunnichen Effect of defeat and death of Ecgfrid 267 Position of Angles and Picts 267 Position of Scots and Britons 271 Contest between Cinel Loarn and Cinel Gabhran 271 Conflict between Dalriads and Britons 273 CHAPTER VI. THE KINGDOM OF SCONE.