Affleck Castle, also known as Auchenleck Castle, was built on the lands of the Auchenlecks in the 15th century. In the early 18th century it belonged to a family of Reids, who forfeited the castle in 1746 because of their activities as Jacobites. It has not been occupied since 1760, when a new mansion was built.
Affleck Castle is a well-preserved free-standing tower of four storeys and a parapeted garret. It is 18 m tall, and has thick rubble walls, with several mural rooms. A few steps down from the entrance is the basement, which is sub-divided.
The hall, which is on the first floor, has a vaulted ceiling; this supports a withdrawing room. Above the main staircase is an entresol bedroom, almost 2.1 m square, reached by an eleven-step staircase in the east wall. The stairs lead from the hall. The withdrawing room has a spy-hole into the hall below. This would have allowed all movement to the main turnpike stair to be observed. The room has window seats, wall closets, and a shafted fireplace. A step up from this room leads to a circular oratory, equipped with aumbry, piscine, holy-water stoup and stone candle-holders. This room is also vaulted. There is a bedroom in each of the upper floors.
A projection by the door, with a square caphouse, houses the stair. There is another square caphouse over the south-west angle. There are two devices for dropping missiles or liquids on attackers: one over the arched door; and the other on the west front, while the ground floor is equipped with gun loops.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.