The Long, later Tylney-Long Baronetcy, of Westminster in the County of London, was a title in the Baronetage of England. It was created in 1662 for Robert Long

Sir Robert Long, 1st Baronet

Sir Robert Long, 1st Baronet was a courtier, administrator and politician in 17th century England.He was the son of Sir Walter Long of South Wraxall and Draycot in Wiltshire, and his wife Catherine Thynne of Longleat...

, with remainder in default of male issue of his own to his nephew James Long and the heirs male of his body. He was the son of Sir Walter Long. Long never married and was succeeded according to the special remainder by his nephew, James, the second Baronet. He was the son of Sir Walter Long. Three of Sir James's grandsons, the third, fourth and fifth Baronets, all succeeded in the title. The latter represented several constituencies in the House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

. He married Lady Emma, daughter of Richard Tylney, 1st Earl Tylney (see Earl Tylney

Earl Tylney

Earl Tylney, of Castlemaine in the County of Kerry, was a title in the Peerage of Ireland. It was created on 11 June 1731 for Richard Child, 1st Viscount Castlemaine. The Child family descended from the merchant, economist and colonial administrator Josiah Child, who on 16 July 1678 was created a...

). Their son, the sixth Baronet, succeeded to the substantial Tylney estates, including Wanstead Park

Wanstead Park

Wanstead Park is the name of a grade II listed municipal park covering an area of about 140 acres , located in Wanstead, in the London Borough of Redbridge, historically within the county of Essex...

, on the death of his maternal uncle in 1784 and assumed the additional surname of Tylney. His only son, the eighth Baronet, died young in 1805 when the baronetcy became extinct.

Catherine Tylney-Long, daughter of the seventh Baronet and sister of the eighth and last Baronet, inherited the family estates. She married William Pole-Wellesley, 4th Earl of Mornington

William Pole-Tylney-Long-Wellesley, 4th Earl of Mornington

William Pole-Tylney-Long-Wellesley, 4th Earl of Mornington was an Anglo-Irish nobleman notorious for his dissipated lifestyle.-Ancestry:...

, who assumed the additional surnames of Tylney and Long. See Earl of Mornington

Earl of Mornington

Earl of Mornington is a title in the Peerage of Ireland, since 1863 a subsidiary title of the dukedom of Wellington. It was created in 1760 for the Anglo-Irish politician and composer Garret Wellesley, 2nd Baron Mornington. He was made Viscount Wellesley, of Dangan Castle in the County of Meath, at...

 fur further history of this title.

Long, later Tylney-Long Baronets, of Westminster (1662)

• Sir Robert Long, 1st Baronet
  Sir Robert Long, 1st Baronet
  Sir Robert Long, 1st Baronet was a courtier, administrator and politician in 17th century England.He was the son of Sir Walter Long of South Wraxall and Draycot in Wiltshire, and his wife Catherine Thynne of Longleat...
  
   (1598-1673)
• Sir James Long, 2nd Baronet
  Sir James Long, 2nd Baronet
  Sir James Long, 2nd Baronet was an English politician and Royalist soldier.Born at South Wraxall, Bradford-on-Avon, Wiltshire, the son of Sir Walter Long and Anne Ley , he was educated at Magdalen College, Oxford, and admitted to Lincoln's Inn in 1634...
  
   (1617-1692)
• Sir Robert Long, 3rd Baronet (1673-1692)
• Sir Giles Long, 4th Baronet (1675-1698)
• Sir James Long, 5th Baronet
  Sir James Long, 5th Baronet
  Sir James Long, 5th Baronet was an English politician.The son of James Long and his wife Susan Strangways, he was baptised at Melbury, Dorchester, Dorset in 1682. Long was Member of Parliament for Chippenham in 1705, 1707, 1708, and 1710, and for Wootton Bassett in 1714...
  
   (1682-1729)
• Sir Robert Long, 6th Baronet
  Sir Robert Long, 6th Baronet
  Sir Robert Long, 6th Baronet was an English politician.The only surviving son of Sir James Long, 5th Baronet and his wife Henrietta Greville, Long was baptised on 8 November 1705 at St Martin in the Fields, Westminster, London...
  
   (1705-1767)
• Sir James Tylney-Long, 7th Baronet
  Sir James Tylney-Long, 7th Baronet
  Sir James Tylney-Long, 7th Baronet was an English politician.The eldest son of Sir Robert Long, 6th Baronet and his wife Emma Child, he succeeded his father as 7th Baronet on 10 February 1767, and inherited the family estates, including the manors of Draycot and Athelhampton.- Career :He was a...
  
  (1736-1794)
• Sir James Tylney-Long, 8th Baronet (1794-1805)