William Bernard Harcourt, marquis d'Harcourt, was born 8 June 1801 to Amédée Louis Charles François Harcourt, marquis d'Harcourt (1771-1831) and Elizabeth Sophie Harcourt (1771-1846) and died 14 May 1847 St Leonard's Hill, Clewer, Berkshire, England, United Kingdom of apoplexy. He married Elizabeth Georgiana Harriett Cavendish (1812-1892) 3 February 1837 .
|Offspring of William Bernard Harcourt, marquis d'Harcourt and Elizabeth Georgiana Harriett Cavendish (1812-1892)|
|Sarah Mary Sophia Harcourt (1839-1914)|
|Elizabeth Mary Caroline Harcourt (1841-1917)||3 October 1841||1917||Henry Ralph Lambton (1825-1896)|
|Alice Anne Caroline Harcourt (1844-1903)|