John Tempest Jr. (1739 – 12 August 1794) was a County Durham landowner and Tory politician who sat in the House of Commons from 1768 to 1794.
He inherited his family's extensive landed interests including the manors of Wynyard, The Isle, Kelloe, Old Durham and Rainton, making him one of the largest shippers of coal via Sunderland in the late 18th century.
Their only son, John Wharton Tempest (1772–1793) (the subject of a painting by George Romney), predeceased them as a result of a riding accident.
[3] The Tempest estates thus devolved to his nephew Henry, the son of a sister who had married the Rev.
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