In the Plantation of Ulster in 1609 Clonkeen was confiscated from the McKiernans and King James VI and I by grant dated 27 June 1610, granted the Manor of Keylagh, which included one poll in Clonkeine, to John Achmootie, a Scottish Groom of the Bedchamber. His brother Alexander Achmootie was granted the neighbouring Manor of Dromheada. On 16 August 1610 John Aghmootie sold his lands in Tullyhunco to James Craig. On 29 July 1611 Arthur Chichester, 1st Baron Chichester and others reported that John Auchmothy and Alexander Auchmothye have not appeared at the lands awarded to them. James Craige is their deputy for five years, who has brought 4 artificers of divers sorts with their wives and families and 2 other servants. Stone raised for building a mill and trees felled, a walled house with a smith's forge built, 4 horses and mares upon the grounds with competent arms. On 1 May 1611 James Craig leased, inter alia, 1 poll of Clonkenie to Eugene mac Cahell McKernan. Eugene must have sold his leasehold interest to his chief, Brian 'Bán' Mág Tighearnán, as an Inquisition of King Charles I of England held in Cavan Town on 14 March 1630, stated that Brian bane McKiernan died on September 4, 1622, and his lands comprising seven poles and three pottles in Clonkeen, Clontygrigny, Cornacrum, Derrinlester, Dring townland, Killygorman, Kiltynaskellan and Mullaghdoo, Cavan went to his nearest relatives. The most likely inheritors being Cahill, son of Owen McKiernan; Brian, son of Turlough McKiernan and Farrell, son of Phelim McKiernan, all aged over 21 and married.
