Question: Henriëtte Elisabeth de Swart linguist of a Germanic ethnic group native to where?

Context paragraphs:
Rancho Nueva Flandria: Rancho Nueva Flandria was a Mexican land grant in present-day Yolo County, California given in 1844 by Governor Manuel Micheltorena to Jan Lows de Swart (John Schwartz).  The name means "New Flanders" in honor of Swart's native country.  The grant extended along the west bank of the Sacramento River, from present-day Bryte south to Merritt Island, and encompassed present-day West Sacramento.  The land claim was rejected as fraudulent in 1857.

Norwegians: Norwegians (Norwegian: "nordmenn" ) are a Germanic ethnic group native to Norway.  They share a common culture and speak the Norwegian language.  Norwegian people and their descendants are found in migrant communities worldwide, notably in the United States, Canada, Australia, Argentina, Chile, Uruguay, Brazil, Mexico, New Zealand, United Kingdom and South Africa.

Dutch people: The Dutch (Dutch:    ), occasionally referred to as Netherlanders—a term that is cognate to the Dutch word for Dutch people, "Nederlanders"—are a Germanic ethnic group native to the Netherlands.  They share a common culture and speak the Dutch language.  Dutch people and their descendants are found in migrant communities worldwide, notably in Aruba, Suriname, Guyana, Curaçao, Chile, Argentina, Brazil, Canada, Australia, South Africa, New Zealand, and the United States.

Thai people: The Thai people or Thais (Thai: ไทยสยาม ), formerly known also as Siamese, are a nation and Tai ethnic group native to Southeast Asia, primarily Thailand.  As a part of the larger Tai ethnolinguistic group native to Southeast Asia as well as southern China and Northeast India, Thais speak the Thai language, which exists in different regional variants, and is classified as part of the Tai–Kadai family of languages.  Majority of Thais are followers of Theravada Buddhism.

Germans: Germans (German: "Deutsche" ) are a Germanic ethnic group native to Germany and other parts of Central Europe, who share a common German ancestry, culture and history.  German is the shared mother tongue of a substantial majority of ethnic Germans.

Flemish people: The Flemish or Flemings (Dutch: "Vlamingen" ) are a Germanic ethnic group native to Flanders, in modern Belgium, who speak Dutch, especially any of its dialects spoken in historical Flanders, known collectively as Flemish Dutch.  They are one of two principal ethnic groups in Belgium, the other being the French-speaking Walloons.  Flemish people make up the majority of the Belgian population (about 60%).  Historically, all inhabitants of the medieval County of Flanders were referred to as "Flemings", irrespective of the language spoken.  The contemporary region of Flanders comprises a part of this historical county, as well as parts of the medieval duchy of Brabant and the medieval county of Loon.

Henriette de Swart: Henriëtte Elisabeth de Swart (born 15 May 1961, Doetinchem) is a Dutch linguist.  She earned her PhD at Groningen University in 1991.  She was a research fellow at Groningen University and assistant professor at Stanford University.  She is currently a Professor in French linguistics and semantics at Utrecht University.  Her research focuses on cross-linguistic variation in meaning particularly in regards to tense and aspect, negation, bare nominals and indefinite noun phrases.  She has also investigated the role of semantics in language evolution, and was involved in the development of bidirectional optimality theory.

Luxembourgers: Luxembourgers are a Germanic ethnic group native to Luxembourg who share the culture of Luxembourg, speak Luxembourgish and are of Luxembourgish descent.  Luxembourgers were, much like Austrians, historically considered to be a regional subgroup of ethnic Germans and viewed themselves as such until the collapse of the German Confederation.  Following the collapse of the confederation, Duchy of Luxembourg entered a personal union with the Netherlands through Treaty of London in 1839; the union ended in 1890.

Swedes: Swedes (Swedish: "svenskar" ) are a Germanic ethnic group native to Sweden.  They mostly inhabit Sweden and the other Nordic countries, in particular Finland, with a substantial diaspora in other countries, especially the United States.

Swart: Swart is an Afrikaans and Dutch surname meaning "black" (spelled "zwart" in modern Dutch).  Variations on it are "de Swart", "Swarte", "de Swarte", "Swarts", Zwart, de Zwart, and Zwarts.  People with this surname include:

Supporting paragraphs: Henriette de Swart Dutch people
Answer: Netherlands