Question: Which National Park is older, Sierra Nevada National Park or Doñana National Park?

Context articles: Kings Canyon National Park
Retuerta horse
Sierra Nevada National Park (Spain)
Doñana National Park
Sierra Nevada National Park (Venezuela)
Sierra Nevada del Cocuy
Marisma de Hinojos
Doñana disaster
Mauricio González-Gordon y Díez
Pico Bonpland

Kings Canyon National Park is a national park in the southern Sierra Nevada, in Fresno and Tulare Counties, California in the United States.
 Originally established in 1890 as General Grant National Park, it was greatly expanded and renamed to Kings Canyon National Park on March 4, 1940.
 Its namesake, Kings Canyon, is a rugged glacier-carved valley more than a mile (1,600 m) deep; the park also includes multiple 14000 ft peaks, high mountain meadows, swift-flowing rivers, and some of the world's largest stands of giant sequoia trees.
 Kings Canyon is north of and contiguous with Sequoia National Park; the two are jointly administered by the National Park Service as the Sequoia and Kings Canyon National Parks.
The Retuertas horse, Spanish: Caballo de las Retuertas or Caballo de las Retuertas de Doñana , is a rare breed of horse indigenous to the Andalusia region of Spain.
 It is said to closely resemble the ancient Iberian horses that populated Spain before being domesticated.
 It is now found only in the Doñana National Park in the provinces of Huelva and Sevilla, and in The Biological Reserve "Campanarios de Azaba" in Espeja (Salamanca province) a part of which is the research reserve of the Consejo Superior de Investigaciones Científicas, the Spanish National Research Council.
 According to a genetic study by the CSIC, the Retuertas horse is one of the oldest European breeds., dating to 3000 years BP, and the only one living in the wild and isolated from other populations.
The Parque Nacional de Sierra Nevada (known as the Sierra Nevada National Park in English) is a national park located in the provinces of Granada, Almería, and Málaga in Andalusia, Spain.
 It was declared a national park on 14 January 1999.
 It stretches from the Alpujarra to El Marquesado and the Lecrin Valley, covering a total area of 85,883 hectares, making it the largest national park in Spain.
 It incorporates the municipalities of Abla, Abrucena, Alboloduy, Alsodux, Bayárcal, Beires, Canjáyar, Fiñana, Fondón, Laujar de Andarax, Nacimiento, Ohanes, Paterna del Río, Rágol, Las Tres Villas, Aldeire, Alpujarra de La Sierra, Bérchules, Bubión, Busquístar, Cáñar, Capileira, Dílar, Dólar, Dúrcal, Ferreira, Güéjar Sierra, Huéneja, Jerez del Marquesado, Juviles, Lanjarón, Lanteira, Lecrín, Lugros, Monachil, Nevada, Nigüelas, Pampaneira, Pórtugos, Soportújar, La Taha, Trevélez, Valor and La Zubia.
Doñana National Park is a natural reserve in Andalusia, southern Spain, in the provinces of Huelva (most of its territory) and Seville.
 It covers 543 km² , of which 135 km² are a protected area.
 The park is an area of marshes, shallow streams, and sand dunes in Las Marismas, the delta where the Guadalquivir River flows into the Atlantic Ocean.
 It was established as a nature reserve in 1969 when the World Wildlife Fund joined with the Spanish government and purchased a section of marshes to protect it.
 The eco-system has been under constant threat by the draining of the marshes, the use of river water to boost agricultural production by irrigating land along the coast, water pollution by upriver mining, and the expansion of tourist facilities.
 It is named after wife of the seventh Duke of Medina-Sidonia.
The Sierra Nevada National Park (PNSN) is an important National Park of Venezuela located between Mérida and Barinas states in the west of the country.
 It was created on May 2, 1952, by decree of President Germán Suárez Flamerich, in order to protect the Sierra Nevada de Mérida in the Andes.
The Sierra Nevada del Cocuy Chita o Guican National Natural Park (or Sierra Nevada de Chita or Sierra Nevada de Güicán, Spanish: "Parque Natural Sierra Nevada del Cocuy Chita o Guican" is a national park and a set of highlands within the Cordillera Oriental mountain range in the Andes Mountains of Colombia.
The Marisma de Hinojos is a salt marsh about 50 km north of the city of Cadiz, It is in the province of Huelva, in the autonomous region of Andalusia, Spain.
 "Marisma de Hinojos" means "salt marsh of Hinojos", being Hinojos a town which name means "fennel plants".
 It lies within Doñana National Park (Parque Nacional de Doñana) on the Costa de la Luz.
The Doñana Disaster, also known as the Aznalcollar Disaster or Guadiamar Disaster (Sp: "Desastre de Aznalcóllar", "Desastre del Guadiamar"), was an industrial accident in Andalusia, southern Spain.
 On 25 April 1998, a holding dam burst at the Los Frailes mine, near Aznalcóllar, Seville Province, releasing 4–5 million cubic metres of mine tailings.
 The acidic tailings, which contained dangerous levels of several heavy metals, quickly reached the nearby River Agrio, and then its affluent the River Guadiamar, travelling about 40 kilometres along these waterways before they could be stopped.
 The Guadiamar is the main water source for the Doñana National Park, a UNESCO World Heritage Site and one of the largest national parks in Europe.
 The cleanup operation took three years, at an estimated cost of €240 million.
Mauricio González-Gordon y Díez, Marquis of Bonanza (18 October 1923 – 27 September 2013) was a Spanish sherry maker and a conservationist.
 Most of his life he worked for the family company, González Byass, where he increased its exports to a worldwide level.
 His family estate was located in the wetland region called Doñana in southern Spain and was threatened by drainage efforts in the early 1950s.
 González-Gordon with the help of researchers and international support managed to preserve the site, while at the same time donating some of his family land to the conservation effort.
 Afterward, González-Gordon became one of the founders of the Spanish Ornithological Society in 1954.
 His conservation efforts for Doñana culminated in the creation of the Doñana National Park in 1969.
 The area was designated a UNESCO World Heritage Site in 1994.
Pico Bonpland is Venezuela's third highest peak, at 4,883 metres above sea level.
 It is located in the Sierra Nevada de Merida, in the Venezuelan Andes of (Mérida State).
 The peak with its sister peak Pico Humboldt, and the surrounding páramos are protected by the Sierra Nevada National Park.
 The name of the peak is in honor to Aimé Bonpland, although he never visited the Venezuelan Andes.