Question: What wealthy family descending from Mayer Amschel Rothschild purchased Gunnersbury Park?

Context paragraphs:
Rothschild banking family of England: The Rothschild banking family of England was founded in 1798 by Nathan Mayer von Rothschild (1777–1836) who first settled in Manchester but then moved to London.  Nathan was sent there from his home in Frankfurt by his father, Mayer Amschel Rothschild (1744–1812).  Wanting his sons to succeed on their own and to expand the family business across Europe, Mayer Amschel Rothschild had his eldest son remain in Frankfurt, while his four other sons were sent to different European cities to establish a financial institution to invest in business and provide banking services.  Nathan Mayer von Rothschild, the third son, first established a textile jobbing business in Manchester and from there went on to establish N M Rothschild & Sons bank in London.

Rothschild family: The Rothschild family is a wealthy family descending from Mayer Amschel Rothschild, a court Jew to the German Landgraves of Hesse-Kassel in the Free City of Frankfurt, who established his banking business in the 1760s.  Unlike most previous court Jews, Rothschild managed to bequeath his wealth and established an international banking family through his five sons, who established themselves in London, Paris, Frankfurt, Vienna, and Naples.

Gunnersbury Park: Gunnersbury Park is a park between Acton, Brentford, Chiswick and Ealing, West London, England.  Purchased for the nation from the Rothschild family, it was opened to the public by Neville Chamberlain, then Minister of Health, on 21 May 1926.  The park is currently jointly managed by Ealing and Hounslow borough councils.

S. M. von Rothschild: S M von Rothschild was a banking enterprise established in 1820 in Vienna, Austria-Hungary by Salomon Mayer Rothschild, the founder of the Rothschild banking family of Austria and a member of the Mayer Amschel Rothschild family of Frankfurt, Germany.  The business prospered, financing various Austrian government undertakings where large amounts of capital had to be raised.  The bank played a major role in the building of the country's economic infrastructure including the first rail transport networks.  Passed down to Salomon Mayer Rothschild's male heirs, the bank would be run by Anselm von Rothschild (President: 1848–1874), Albert Salomon von Rothschild (President: 1874–1911), and Louis Nathaniel von Rothschild (President: 1911-1939).

Rothschild banking family of France: The Rothschild banking family of France is a French banking dynasty founded in 1812 in Paris by James Mayer de Rothschild (1792–1868).  James was sent there from his home in Frankfurt, Germany, by his father, Mayer Amschel Rothschild (1744–1812).  Wanting his sons to succeed on their own and to expand the family business across Europe, Mayer Amschel Rothschild had his eldest son remain in Frankfurt, while his four other sons were sent to different European cities to establish a financial institution to invest in business and provide banking services.  Endogamy within the family was an essential part of the Rothschild strategy in order to ensure control of their wealth remained in family hands.

Mayer Amschel de Rothschild: Baron Mayer Amschel de Rothschild (29 June 1818 – 6 February 1874) was an English businessman and politician of the English branch of the Rothschild family.  He was the fourth and youngest son of Nathan Mayer Rothschild (1777–1836).  He was named Mayer Amschel Rothschild, for his grandfather, the patriarch of the Rothschild family.

Rothschild banking family of Naples: The Rothschild banking family of Naples was founded by Calmann (Carl) Mayer von Rothschild (1788–1855) who was sent to the Kingdom of the Two Sicilies from Frankfurt am Main, Germany in 1821 by his father, Mayer Amschel Rothschild.  Wanting his sons to succeed on their own and to expand the family business across Europe, Mayer Amschel Rothschild had had his eldest son remain in Frankfurt, while his four other sons went to different European cities to establish a financial institution to invest in business and provide banking services.

Amschel Moses Rothschild: Amschel Moses Rothschild (  1710 – 6 October 1755) was a German Jewish money changer and trader in silk cloth in the "Judengasse", the Jewish ghetto of the Free City of Frankfurt in present-day Germany.  His son Mayer Amschel Rothschild became the progenitor of the Rothschild dynasty.

David Mayer de Rothschild: David Mayer de Rothschild (born 25 August 1978) is a British adventurer, ecologist, and environmentalist and head of Sculpt the Future Foundation, a charity that supports innovations and creativity in social and environmental impact efforts.  He is a member of the Rothschild family, the youngest of three children of Victoria Lou Schott (born 1949) and Sir Evelyn de Rothschild (b. 1931) of the Rothschild banking family of England.  His middle name "Mayer" is taken from the name of the founder of the Rothschild family banking empire, Mayer Amschel Rothschild.

Nathan Mayer Rothschild: Nathan Mayer, Freiherr von Rothschild (16 September 1777 – 28 July 1836) was a Jewish German banker, businessman and financier.  He was one of five sons of the second generation of the Rothschild banking dynasty.  He was born in Frankfurt am Main, the third child of Mayer Amschel Rothschild (1744–1812) and Gutle Schnapper (1753–1849).  Once the wealthiest man on earth, he was the richest among the Rothschilds.

Supporting paragraphs: Gunnersbury Park Rothschild family
Answer: Rothschild family