survey in 2014 which also indicated that it contained timber buildings. When Richard Siward remodelled the castle it is likely that he added the motte with its stone enclosure castle and replaced the single small bailey with two large enclosures south of the motte. These enclosures may have housed a market as was the case at Lochmaben Castle. There are few examples in Scotland of earthwork castles being rebuilt in stone. The four-sided motte measures at the summit. The enclosure castle on top is roughly rectangular, measuring , with a round tower at each corner. Little survives above ground of this structure, though the south-south-east tower survives best. The south side of the enclosure castle had an additional tower which tower with the south-south-east corner tower flanked the entrance. Inside, the castle had a well on the east side and a range of buildings extending along the west and north sides; these likely contained a great hall, the kitchens, and a chamber. There was a postern gate just south of the north-east tower. This phase of Tibbers is "one of the few authentic surviving remnants of English castle building in Scotland during the Plantagenet occupation." At its greatest extent Tibbers Castle measured by . The courtyard of the enclosure castle is the inner bailey. The outer and outermost baileys each cover an area of about . The ramparts enclosing the site survive to a height of and are between wide. Double baileys are uncommon, with examples at Windsor and Llandinam. See also List of castles in Scotland Morton Castle References Bibliography Further reading External links Investigation by the Castle Studies Trust and RCHAMS Flickr album of photographs of Tibbers Castle Motte-and-bailey castles Castles in Dumfries and Galloway Scheduled Ancient Monuments in Dumfries and Galloway