In 1646 Montgomerie was engaged in the northern campaign under
John Middleton and on 27 April entered Aberdeen with about 240 horse (cavalry) in four troops. In addition to his horse he had under his command 700 foot in two regiments, and he was entrusted with the duty of holding the city. Huntly, who having suffered some setbacks had retreated to Strathnaver in 1645 had since then returned to his lands around Strathbogie and raised a force of 1,600 foot and 600 horse. ==Battle==