Dark age hill fort The present castle stands on land where evidence suggests there was a
hill fort. It is thought that a mixture of large timber-built
roundhouse and straight-sided structures occupied the interior. A timber-laced stone rampart defined and defended the fort. The timber lacing caught fire and burnt with such intensity that the surrounding stonework melted, or
vitrified. This firing happened about 1000 AD and seems to mark the end of the hill-fort’s existence. It was about this date that the British
Kingdom of Strathclyde ceased to exist, being absorbed into the
Kingdom of Scotland. The place name Dundonald means "fort of Donald". It appears to be derived from the
British *
Din Dyfnwal (the British
personal name Dyfnwal is cognate to the
Scottish Gaelic Dòmhnall and
English Donald). The eponym of the fortress is unknown, although he may have been any of the numerous
kings of Alt Clut/Strathclyde who bore the name
Dyfnwal from the eighth century to the tenth century.
Early castles There have been three
medieval castles present on this site. The first was built by one of the stewards of the king of Scots, most probably
Walter, the first steward, who came to Scotland in 1136. There is no surviving evidence of this castle above ground today. The second castle was built in the late 13th century by
Alexander Stewart, 4th High Steward, this castle was predominantly built of stone. It would have been one of the grandest baronial residences of its time. It was largely destroyed by the Scottish during the
Wars of Scottish Independence in the early 14th century. King Robert the Bruce's policy was to slight (demolish) most castles so they could not be used by enemies including much greater castles than Dundonald, such as
Edinburgh Castle and
Roxburgh Castle. There is little remaining of this castle, however there is a well and a rounded stump of a tower near to the present.
The present castle The third castle was built by Robert Stewart, probably to mark his accession to the throne as
Robert II in 1371. It was three storeys high. The top floor above the lofty stone vault was the upper hall – the
great hall. It was for the more private use of the king and family. The first floor was the lower of the two halls – the laigh hall. It would have been used for more public activities like feasting and the holding of the baron court. The ground floor was a storage area. It was probably originally subdivided providing cellars for different commodities like wine, ale, foodstuffs and fuel. The tower house was extended in the late 14th century to add additional private chambers and a prison. The outer courtyard (called more properly the
barmkin) was completed and ancillary buildings (stables, bakehouses, brewhouses, smithy, etc.) built against the barmkin wall. The third castle comprised almost everything that is visible above ground today, including the tower which dominates the hill. Dundonald castle once had its own chapel dedicated to
Saint Inan.
Auchens House By 1520 the castle was in the possession of the
Wallaces of Craigie. In 1536 King
James V granted the castle and its estates to Robert Boyd, but he was unable to gain possession and, after a second, failed attempt at eviction, Boyd ceded control to the Wallace family. A century later, debt forced the Wallaces to sell the castle in 1632, although by that time the family had moved its main residence to
Auchens House, which they had built in the 1580s, in part with materials removed from Dundonald. The buyer was James Mathieson. He sold out to
Sir William Cochrane in 1638, when Cochrane also bought Auchens House. In 1669 Cochrane was created the first
Earl of Dundonald for his support to the Royalist cause in the
Wars of the Three Kingdoms. In 1726 the Cochranes sold their Dundonald estate but retained possession of the ruined castle. In 1953 the
13th Earl gave the castle to the state which began a programme of reconstruction. ==The castle today==