Sir William Lowther, 3rd Baronet (1727 – 15 April 1756) was an English

England

England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

 landowner, of Marske Hall

Marske Hall

Marske Hall is a 17th century former mansion house, now serving as an institutional residence, in Marske-by-the-Sea, Redcar and Cleveland, England. It has Grade I listed building status....

, Yorkshire

Yorkshire

Yorkshire is a historic county of northern England and the largest in the United Kingdom. Because of its great size in comparison to other English counties, functions have been increasingly undertaken over time by its subdivisions, which have also been subject to periodic reform...

 and Holker Hall

Holker Hall

Holker Hall is a country house with a celebrated garden situated on the Cartmel Peninsula, which was historically part of the county of Lancashire, but is now part of the county of Cumbria....

. He was the eldest son of Sir Thomas Lowther, 2nd Baronet and Lady Elizabeth Cavendish.

In January 1755, he inherited the Whitehaven

Whitehaven

Whitehaven is a small town and port on the coast of Cumbria, England, which lies equidistant between the county's two largest settlements, Carlisle and Barrow-in-Furness, and is served by the Cumbrian Coast Line and the A595 road...

 estates and coal mines from his fourth cousin once removed, Sir James Lowther, 4th Baronet

Sir James Lowther, 4th Baronet

Sir James Lowther, 4th Baronet, FRS was an English landowner, politician and industrialist. He obtained immense wealth from coal mines in northern England, which he extensively developed and modernised.-Early life:...

, and succeeded him as Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Cumberland

Cumberland (UK Parliament constituency)

Cumberland is a former United Kingdom Parliamentary constituency. It was a constituency of the House of Commons of the Parliament of England then of the Parliament of Great Britain from 1707 to 1800 and of the Parliament of the United Kingdom from 1801 to 1832. It was represented by two Knights of...

. However, he died unmarried in 1756, last of his line. He left the bulk of his estates, including the Whitehaven inheritance, to his fourth cousin, James Lowther

James Lowther, 1st Earl of Lonsdale

Sir James Lowther, 1st Earl of Lonsdale was the son of Robert Lowther and Catherine Pennington.He married Mary Crichton-Stuart, daughter of John Stuart, 3rd Earl of Bute and Mary Wortley-Montagu, 1st Baroness Mount Stuart on 7 September 1761.On 9 June 1792 he fought a duel with a Captain Cuthbert...

. Holker Hall, which had come from his grandmother Catherine Preston, was left to a distant cousin on her side, Lord George Cavendish.

Marske Hall was bought by Thomas Dundas

Thomas Dundas, 1st Baron Dundas

Thomas Dundas, 1st Baron Dundas FRS , known as Sir Thomas Dundas, 2nd Baronet, from 1781 to 1794, was a powerful figure in the Kingdom of Great Britain, now remembered for commissioning the Charlotte Dundas, the world's "first practical steamboat".-Biography:Thomas was the only son of Sir Lawrence...

, later Lord Dundas, in 1762.