Sydney Pierrepont, 3rd Earl Manvers

Sydney William Herbert Pierrepont, 3rd Earl Manvers (12 March 1826 – 16 January 1900) was a British nobleman and politician.

Born at Holme Pierrepont, he was the second surviving son of Charles Pierrepont, 2nd Earl Manvers. Educated at Eton, Pierrepont entered Christ Church, Oxford in 1843 and received his BA in 1846. While attending there, he was commissioned a first lieutenant in the Nottinghamshire Yeomanry Cavalry (Sherwood Rangers) in 1844.

Pierrepont was styled Viscount Newark after the death of his elder brother in 1850. In 1851, he was commissioned a captain in the South Nottinghamshire Yeomanry Cavalry, and in 1852, was elected unopposed as Conservative Member of Parliament for South Nottinghamshire. He was named a deputy lieutenant of Nottinghamshire in 1854. Newark continued to sit for South Nottinghamshire until 1860, when he succeeded his father as Earl Manvers. He was appointed lieutenant-colonel commandant of his Yeomanry regiment in 1868, and honorary colonel of the regiment in 1879.

He married Georgine Jane Elizabeth Fanny de Franquetot, second daughter of Gustave, Duc de Coigny in 1852. They had five children:

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