Sorn Castle is located by the River Ayr just outside the village of Sorn in East Ayrshire, Scotland. The castle comprises a medieval tower house, which was extended over the years, and remodelled in the Scots Baronial style by David Bryce in the 1860s. The castle is protected as a category A listed building.
A tablet on the castle wall states "Extant AD 1409, Added to AD 1783, Restored AD 1865, Enlarged AD 1909".
The original three-storey tower house is located at the south-west of the present building, and was constructed in the 15th century, or possibly earlier. This tower was extended westwards in the 16th century. Additions were made in the late 18th century in a castellated style. In the 1860s the Somervell family owned the castle, and commissioned David Bryce to remodel the building. Sorn Castle was bought in 1908 by Thomas W. McIntyre, who commissioned a new entrance from architect Henry Edward Clifford and carried out internal remodelling.
In September 1598 the wedding of Ludovic Stewart, 2nd Duke of Lennox and Jean Campbell, a great-granddaughter of James IV of Scotland, was celebrated with a banquet at Sorn attended by James VI, who stayed two nights.
- "Castles and Historic Buildings: Sorn Castle". East Ayrshire Council.
- Historic Environment Scotland. "SORN CASTLE (Category A Listed Building) (LB14273)". Retrieved 30 December 2018.
- Historic Environment Scotland. "Sorn Castle (43548)". Canmore. Retrieved 30 December 2018.
- John Duncan Mackie, Calendar State Papers Scotland: 1597–1603, 13:1 (Edinburgh, 1969), p. 277: HMC Report on the Manuscripts of Colonel David Milne Home of Wedderburn Castle, (London, 1902), p. 70
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