The 1609 Plantation of Ulster Baronial map depicts the townland as split into two parts Teyriah (Irish derived place name, probably Tuath Riabhach meaning the Grey-Striped Land) and Mollachsifine.
Humbly beseecheth your honourable Lordship, your orator, John Kernan, of Aghewehan, in the territory or cantred of Tolconchoe, alias M'Kernan's country, in the county of the Cavan, within the realm of Ireland, that it may please your Lordship with your favour to further his petition to Her Majesty for the grant of the reversion of the office of Clerk of Common Pleas in the Exchequer for his life, and of the seneschalship of the said cantred to him and to his heirs males of his body, in consideration of his endeavours in Her Majesty's service in the government of Sir William Fytzwylliams, Arthur Lord Grey, and the Lords Justices [Loftus and Wallop], and the rather that your said orator, through the entreaty of his kinsmen, the inhabitants of the said cantred, has left the English Pale to dwell among them, hoping, if convenient countenance be afforded to him by the said grant, to bring them, through dutiful exhortation, and examples of husbandry and other civil trades, from their disorders and disobedience to the due regard of loyalty and obedience.
With power to raise the inhabitants, and command them for defence of the territory, the public weal of the inhabitants, and the punishment of malefactors; to prosecute, banish, and punish by all means malefactors, rebels, vagabonds, rymors, Irish harpers, bards, bentules, carrowes, idle men and women, and those who assist such; and twice a year within a month after Easter and Michaelmas respectively to hold a court and law day.
[11] In the Plantation of Ulster by grant dated 4 June 1611, King James VI and I granted part of Aghaweenagh containing 2 plowlands or 100 acres in Tewreagh otherwise Owtony to Donell mac Farrall Oge McKernan, gentleman, at an annual rent of £1-1s-4d.
[12] An inquisition held at Cavan on 21 October 1624 stated that- Donald mac Ferrall Oge McKiernan, late of Tevereoghe alias Aghewynaghe in County Cavan was seised of two polls of land called Tevereoghe alias Aghewynaghe.
He was the son of the previous chief, Hugh Duff O'Sheridan of Togher townland, Kilmore parish, County Cavan.
Owen Sheridan succeeded to his father's lands and this was confirmed by a grant to him by Charles I of England dated 6 March 1637.
Owen's son Denis was born in 1612 and became a Catholic priest in charge of Kildrumferton parish, County Cavan.
sayth sworne & examined saith that on the seavententh of November last 1641 there came unto the habitacion of the deponent William Jones, [Weny] Sheridan of Molloughmore, Ffarrell mac Donell mac Ffarrell Oge McKernan of Aighavenaigh, Donell Oge McKernan of same and their nephew, which was freehoulders of the foresaid Aighavenaigh and violently with other assistants tooke away from the complayneant William Jones, fiftye English cowes price 125 li.
ster and sayd when they tooke away the foresaid goods that the said William Jones, the Complayneant, was a traytor and bade him goe for his Country England & further sayth mee And further theis deponents say that the parties mencioned in a note or scedule hereunto annexed are or were lately actors in the present Rebellion & bore and carryed armes with and for the Rebells against the Protestants whom they robbed and dispoyled of their goodes & did other outrages are theis vizt Tho: Jones Will: Jones Deposed July 26, 1642.
sayth sworne & examined saith that on the seavententh of November last 1641 there came unto the habitacion of the deponent William Jones, [Weny] Sheridan of Molloughmore, Ffarrell mac Donell mac Ffarrell Oge McKernan of Aighavenaigh, Donell Oge McKernan of same and their nephew, which was freehoulders of the foresaid Aighavenaigh and violently with other assistants tooke away from the complayneant William Jones, fiftye English cowes price 125 li.
ster and sayd when they tooke away the foresaid goods that the said William Jones, the Complayneant, was a traytor and bade him goe for his Country England & further sayth mee And further theis deponents say that the parties mencioned in a note or schedule hereunto annexed are or were lately actors in the present Rebellion & bore and carryed armes with and for the Rebells against the Protestants whom they robbed and dispoyled of their goodes & did other outrages are theis vizt Tho: Jones Will: Jones Deposed July 26, 1642.
10 s. sterling, in househould stuffe as plate pewter brasse, lynen wollen beddinge and apparell with other necessaries 40 li.
[18] After the Irish Rebellion of 1641 concluded, the townland was confiscated from the McKiernans and Sheridans in the Cromwellian Settlement and the 1652 Commonwealth Survey lists it as belonging to James Thornton.
A confirming grant dated 30 January 1668 from King Charles II of England to James Thornton included 156 acres and 6 perches in Aghweenagh.
[19] A grant dated 9 September 1669 from King Charles II of England to Arthur Annesley, 1st Earl of Anglesey included, inter alia, part of Aughweenagh containing 71 acres and one rood at an annual rent of £0-19s-1 1/2d.
[20] The townland remained as part of the estate of the Thorntons of Greenville House, Aghaweenagh until 5 September 1863 when they were sold.
Greenville House was described in the sale advert as- On this Property there is a large, substantial, and modern built house, with suitable Offices, and walled-in Garden, fit for the residence of a Gentleman's family; also a handsome Demesne, well planted with useful and ornamental Timber of full growth.
[24] In the Cavan Poll Book of 1761, there was one person registered to vote in Aghaweenagh in the Irish general election, 1761[25] - Abraham Brown.
The losing candidates were George Montgomery (MP) of Ballyconnell and Barry Maxwell, 1st Earl of Farnham.
The House is handsome modern substantially built in excellent order well supplied with water and fit for the immediate reception of a large family.