Nicolson Calvert (1764–1841)

Nicolson Calvert (15 May 1764 – 13 April 1841) was an English Whig politician.

The son of Felix Calvert, a brewer from Southwark and Hunsdon, he was educated at Harrow School and at Trinity Hall, Cambridge. In 1789 he married Frances Pery, daughter and co-heir of the 1st Viscount Pery, a powerful politician from Limerick in Ireland. They six sons and two daughters. Their son, Felix (d. 1862), fought at the Battle of Waterloo while their second daughter Isabella (1793–1862) married Sir James Stronge, Bt. They lived at Hunsdon House in Hertfordshire, which he inherited from his uncle (also named Nicolson Calvert).

He was a Member of Parliament (MP) for the borough of Hertford from 1802 to 1826, and for the county of Hertfordshire from 1826 to 1834.