In 729 a battle between supporters of Óengus and Nechtan's enemies was fought at Monith Carno (traditionally Cairn o' Mount, near Fettercairn) where the supporters of Óengus were victorious.
En 729, desatouse unha batalla entre os partidarios de Óengus e os inimigos de Nechtan en Monith Carno (tradicionalmente Cairn o' Mount, preto de Fettercairn) onde os homes de Óengus saíron vitoriosos.