Castlereagh

American  

[kas-uhl-rey, kah-suhl-] / ˈkæs əlˌreɪ, ˈkɑ səl- /

noun

1. Robert Stewart, Viscount 2nd Marquess of Londonderry, 1769–1822, British statesman.

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Castlereagh ¹ British  

/ ˈkɑːsəlˌreɪ /

noun

1. a district of E Northern Ireland, in Co Down. Pop: 66 076 (2003 est). Area.: 85 sq km (33 sq miles)

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Castlereagh ² British  

/ ˈkɑːsəlˌreɪ /

noun

1. Viscount. title of Robert Stewart, Marquis of Londonderry. 1769–1822, British statesman: as foreign secretary (1812–22) led the Grand Alliance against Napoleon and attended the Congress of Vienna (1815)

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Example Sentences

Born in London in 1934 into an Anglo-Irish aristocratic family, Annabel Vane-Tempest-Stewart was the daughter of Viscount Castlereagh, who later became The 8th Marquess of Londonderry.

From BBC • Oct. 18, 2025

Her treatment was a hysterectomy which she had in January 2024, while still working as a councillor for Lisburn and Castlereagh Council.

From BBC • Jun. 19, 2025

The Connswater River rises in the Castlereagh hills and runs northwards through east Belfast, getting wider until it reaches the sea at Belfast Lough.

From BBC • May 16, 2025

Her body was discovered in a garage on the Castlereagh Road in Belfast.

From BBC • Oct. 16, 2024

Carlile had reason to believe that Lord Chief Justice Abbott was very unwilling to have the trial take place in his Court, and had had a correspondence with Lord Castlereagh on the subject.

From The Battle of The Press As Told in the Story of the Life of Richard Carlile By His Daughter, Theophila Carlile Campbell by Campbell, Theophila Carlile