The reign of Brude was distinguished by many warlike exploits, but above all, as we have seen, by his conversion and that of his people to Christianity, which indeed formed his greatest glory. His chief contests were with the Scoto-Irish or Dalriads, whom he defeated in 557, and slew Gauran their king. Brude died in 586, and for several ages his successors carried on a petty system of warfare, partly foreign and partly domestic. Passing over a domestic conflict, at Lindores in 621, under Kenneth, son of Luthrin, we must notice the important battle of Dun-Nechtan, fought in 685, between the Picts under Brude, the son of Bili,[94] and the Saxons, under the Northumbrian Egfrid. The Saxon king, it is said, greedy of conquest, attacked the Picts without provocation, and against the advice of his court. Crossing the Forth from Lothian, he entered Strathearn and penetrated through the defiles of the Pictish kingdom, leaving fire and desolation in his train. His career was stopt at Dun-Nechtan, the hill of Nechtan, a hill in the parish of Dunnichen, about the centre of Forfarshire; and by a neighbouring lake, long known by the name of Nechtan’s mere, a short distance east from the town of Forfar, did Egfrid and his Saxons fall before Brude and his exasperated Picts. This was a sad blow to the Northumbrian power; yet the Northumbrians, in 699, under Berht, an able leader, again ventured to try their strength with the Picts, when they were once more defeated by Brude, the son of Dereli, who had recently mounted the Pictish throne. The wars between the Picts and Northumbrians were succeeded by various contests for power among the Pictish princes, which gave rise to a civil war. Ungus, honoured by the Irish Annalists with the title of great, and Elpin, at the head of their respective partisans, tried their strength at Monacrib, supposed by some to be Moncrieff in Strathearn, in the year 727, when the latter was defeated; and the conflict was renewed at Duncrei (Crieff), when victory declared a second time against Elpin, who was obliged to flee from the hostility of Ungus. Nechtan next tried his strength with Ungus, in 728, at a place called Monacurna by the Annalists--possibly Moncur in the Carse of Gowrie--but he was defeated, and many of his followers perished. Talorgan, the son of Congus, was defeated by Brude, the son of Ungus, in 730, and in the same year the Picts appear to have entered into a treaty of peace with the English nation.