Sir Phelim O'neal and Sir Conn Macgennis, their generals then in Ulster, and major general Plunkett, who had been a soldier in foreign kingdoms, having enlisted and drawn together out of the counties of Ardmagh, Tyrone, Antrim and Down, and other counties in Ulster, eight or nine thousand men, which were formed into eight regiments, and a troop of horse, with two field pieces; they did rendezvous, on the 27th of November, 1641, at and about a house belonging to Sir George Rawden at Brookhill, three miles distant from Lisnagarvy, in which town they knew there was a garrison of five companies newly raised, and the lord Conway's troops of horse.