Exterior

The tower's east elevation.

The external footprint of the tower is rectangular, roughly 11.8 metres (39 ft) by 8.8 metres (29 ft), and it is about 15 metres (49 ft) high.^[8][9] Stone water spouts project from the roof, cannon-shaped to the east frontage, and U-shaped on the other sides.^[5] Within the parapet, which is crenellated and supported by chequered corbels, there is a garret, and in the south east corner is a cap-house: a small attic covering the stairway and opening onto the wall walk.^[3][5]

The chamfered windows are small and irregularly placed,^[1] and corniced on the upper floors;^[10] their projecting lintels, unusual in Scotland, seem to have been intended to cast off rain.^[11] In the west and east faces, the ground floor walls are pierced by gunloops, shaped like inverted keyholes, in a style similar to that of Cardoness.^[10] The main entrance, on the ground floor of the north wall, has a broad segmental arch, and was formerly a doorway into a (now demolished) 17th-century extension; the less elaborate original entrance remains, in the centre of the east front.^[10] Above it is a worn heraldic plaque with two shields: the upper one, supported by a pair of unicorns, bears the Royal Arms of Scotland, while the lower shield shows a quartered coat of arms, probably for Gordon and Carson, although only a G is still discernible.^[12][10]

On the north side of the building, the lower sections of the west and north walls of a 17th-century extension survive. This was already dilapidated by the 19th century,^[13] and most of it has since been demolished.^[14]

Interior

The tower is noted for its unusual sophistication in the arrangement of small rooms built into the thickness of its walls,^[1] which are up to 2.4 metres (7.9 ft) thick in places.^[3] Also built into the thickness of the walls is a turnpike stair with a newel, which ascends the full height of the tower.^[1][3] The ground floor, which has an entresol level, is vaulted, and is divided into a number of store rooms and guard rooms, some with gun loops, and one with a trap door dropping down to a windowless dungeon.^[10] The entresol is tunnel vaulted, and occupied by a single room with windows in the south and east walls.^[10] It is likely that the ground floor was originally used to accommodate horses or cattle, with the entresol providing a sleeping place for servants.^[9]

Taking up most of the first floor is the great hall, 7.8 metres (25.6 ft) by 5 metres (16.4 ft) in size,^[8] with a beamed ceiling supported by corbels projecting from the walls, and arched windows. One of the stone seats in the west window serves as a step up to a concealed door. This gives access to a small room, again built into the thickness of the wall, which has an external window and also a laird's lug (Scots language for lord's ear): a small listening hole into the hall.^[14]

The second floor and the attic, which would each originally have been occupied by single large rooms, have been subdivided.^[14]

Construction

The tower was built between 1494 and 1504 for Mariota Carson (or Acarsane) and her husband, Robert Gordon, within the Glenskyreburn estate that had been gifted to them by her father, John Carson.^[5] Gordon, heir to the Lochinvar estate, took on the designation "of Rusco" after its completion, and is sometimes referred to by his wife's surname in records.^[6] He was brought before the Lords of Council in 1501 or 1502, charged with the destruction of a house on Crown lands within the barony of Kirkandrews in order to remove timber and slates, possibly to be used for the construction of Rusco Tower; he claimed that the house belonged to him, but was unable to prove it, and was ordered to pay 1,000 merks in damages.^[15]

16th century

Gordon was forced to leave Rusco soon after it had been constructed. With his brother Alexander, he was implicated in the murder of John Dunbar of Mochrum around 1503, and while his brother fled the country, Gordon was put to the horn, a form of punishment similar to outlawry, and his possessions were confiscated; his estate was let by the crown to a neighbour. In 1507, while still under the horn, Gordon was given permission to travel to France, and in 1511 he was given a pardon for his part in the crime, and allowed to return to Scotland and take up his estate once more. By 1516, he had been knighted.^[16]

Rusco Tower was used to incarcerate a number of people in the 16th century. Gordon seized and imprisoned Janet Porter, an heiress who had recently married John McCulloch, a lesser member of the Cardoness McCulloch family. Gordon attempted to force her to sign over her inheritance, the Blacket estate, to him instead of her new husband, and McCulloch, who was not powerful enough to recapture his wife by force, applied to the courts. Gordon did not appear at the hearing, but in his absence the court ordered him to return Porter to her husband. It is not clear whether the order was obeyed, but records show that the Gordon family came to own the Blacket estate shortly afterwards.^[17]

Gordon spent several years in litigation with the Agnews of Lochnaw, who were related to him by marriage. In 1523 he sought to bring the legal dispute to an end by abducting Andrew Agnew, the heir of Lochnaw and his own grandson, and imprisoning him at Rusco. When the boy's uncle, Matthew Agnew, demanded that he be returned within three days, Gordon claimed that he had been placed in a school in Dumfries. The records do not show how this affair was concluded.^[16]

Robert Gordon died in 1524, and within a year his wife Mariota Carson married Thomas Maclellan of Bombie.^[16] Since she owned Rusco Tower and its lands in her own right following the death of her husband, there would have been nothing to prevent her from leaving them to her new husband's family upon her death; her eldest son, James Gordon of Lochinvar, was so concerned that this might happen that he seized Rusco, where his mother was still living, and had her transported to the Borders and imprisoned.^[20] Her husband appealed to the courts, but before the case was concluded Maclellan was killed, in broad daylight, by Gordon and his retinue on the High Street in Edinburgh.^[20]

Later history

The later history of the tower was less turbulent. It was of minor importance to the Gordons once they had taken possession of Lochinvar, and was mostly used as accommodation for minor family members.^[21] It was sold in the 17th century, around which time a two-storey extension was added to the north side.^[1] It was described in the poem "Rusco Castle, a Tale of the Olden Time" published in 1841 by Dugald Williamson of Tongland.^[18][19]

The tower was lived in until the late 19th or early 20th century,^[3][8] but was abandoned and allowed to fall into ruin between the First and Second World Wars.^[2]

In 1971, Rusco Tower was designated a Category A listed building.^[1] The following year, it was purchased by Graham Carson, a Scottish businessman, who employed the architect W. Murray Jack to restore it to an inhabitable condition.^[3][22] The work was completed in 1979, and Carson moved into the tower with his family. Carson had a great-grandfather who was born in Wigtonshire, close to Rusco, and he attempted to find any connection between his family and the Carsons who had originally built the tower, but was never able to do so.^[22] He lived in the tower until 2006, when he moved out and his son, Ian, took up residence;^[23] as of 2018, Ian Carson was still living at Rusco Tower.^[24]