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The Plumbers Arms is a Grade II listed public house at 14 Lower Belgrave Street, Belgravia, London SW1.
It is where Lady Lucan burst in on the evening of 7 November 1974, covered in blood and fearing for her own life, after discovering that her husband, Lord Lucan, had murdered their nanny, Sandra Rivett.
It was built mid-19th century.
Video Plumbers Arms, Belgravia
References
Source of the article : Wikipedia