Handsomely set against a background of woodland, the 16th century tower house at Castlegrove, County Galway is known as both Feartagar Castle and Jennings Castle, the latter name derived from a family believed to have lived there for a period. The building is thought to have been constructed by the de Burgos (otherwise Burkes) who controlled much of the land in this part of the country, but the Jennings may indeed have been responsible, since the two families were related to each other. The surname Jennings originally McSeonins, or sons of John (de Burgo), which was first anglicised to Jonine and then to Jennings, sometimes spelled Jenings.
The castle comprises a rectangular, five-storey tower measuring some 12 by 10 metres. Both the eastern and west roof gables survive, as do chimney stacks on either end as well as on the northern side. At the top of each of the four corners are well-preserved curved bartizans, while above the pointed arch doorway on the eastern wall is a further machicolation. At various levels on every side are a series of arrow slits as well as a number of mullion windows with hood mouldings. Although apparently unoccupied since the mid-17th century, the building is in an excellent state of repair, certainly when compared with many other tower houses found elsewhere around the country.
The castle is believed to have remained in the hands of the de Burgo or Jennings family until the 1650s when, like so many other such properties, it was taken from the owners by the Cromwellian government in the aftermath of the Confederate Wars. It was then granted to the Blakes, members of another well-known County Galway family who had likewise been displaced from their original land holdings. Successive generations of Blakes lived on the property until the mid-19th century, a new house being erected here in the 1830s. However, in the aftermath of the Great Famine, the entire estate was sold through the Encumbered Estates Court, bought for £15,750 by John Cannon. Following his death, it was sold again to Frederick Lewin and was inherited by his son Thomas before being burnt July 1922, seemingly by anti-Treaty forces. The remains are now lost in nearby woodland, with the older tower house today in better condition than its successor.
