By William Douglas, 1st Earl of Douglas, built 1350.
Tantallon Castle is a ruined mid-14th-century fortress, located 5 kilometres (3.1 mi) east of North Berwick, in East Lothian, Scotland. It sits atop a promontory opposite the Bass Rock, looking out onto the Firth of Forth. The last medieval curtain wall castle to be constructed in Scotland, Tantallon comprises a single wall blocking off the headland, with the other three sides naturally protected by sea cliffs.
From Wikipedia, CC BY-SA 4.0.
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