Dunsany
The Down Survey of the Barony of Skryne dated 1657 (original in the Bibliothèque National Paris) shows as part of it the attached map. As can be seen Killeen is recorded as a 'parish' whereas Dunsany is not. 'In the 12th century, townlands were grouped together to form units called parishes, each parish supported a church or chapel. The system was not a system native to Ireland', this seems to have only applied to Norman held lands.
The inclusion of Dunsany's 964 acres (3.90 km2) in the Cusack fiefdom appears to have been in 1305 (CAR.DOC.Irl.1302-7 p. 255) as it does not appear before this in any of the 12th and 13th century charters. This could have been because
-the intuusive wedge of Dunsany was occupied by an Irish chieftain and his retainers, who remained ensconced there wedded to their Celtic way of life, while Norman 'improvements' were imposed all round them.
It is therefore unlikely for there to have been a 'Norman' fortification/castle in Dunsany before 1305.
Read more about this topic: Cusack