Question: Which coastal region boasts a duke named Unno who speaks Frisian?

Context paragraphs:
Nordenskiöldkysten: Nordenskiöldkysten is a coastal region at Spitsbergen, Svalbard, Norway.  It forms the western coast of Nordenskiöld Land between the points Steinneset and Lewinodden, with a coastline of about sixty kilometers.  Nordenskiöldkysten is included in the Nordenskiöld Land National Park.  The coastal region, including the nearby mountain Ingeborgfjellet, was decided a Ramsar site in 2011.

Golden Gate Biosphere Reserve: The Golden Gate Biosphere is a biosphere reserve in Northern California.  It was created by UNESCO in 1988 and encompasses 13 protected areas in the San Francisco Bay Area.  It extends through the central California coastal region from the Bodega Marine Reserve in the north to Jasper Ridge in the south and includes the Farallon Islands, Angel Island, and Alcatraz within the San Francisco Bay.  The biosphere reserve is situated on both sides of the San Andreas Fault.  Each side has a completely different type of bedrock, and the western side of the rift is moving northward.  It encompasses a diverse range of marine, coastal, and upland habitats of the California chaparral and woodlands and Northern California coastal forests ecoregions, including mixed evergreen forests, Coast Redwood forests, Douglas-fir forests, Bishop pine forests, oak forests, woodlands and savannas, northern coastal scrub, chaparral, coastal dune, coastal strand, tidepools, kelp forests, coastal grasslands, and marshes.  The associated fauna is also rich with cougars, Tule elk, California sea lions, elephant seals, and many shorebirds.

Peruvian Ribereño Spanish: Peruvian Ribereño Spanish or Peruvian Coastal Spanish is the form of the Spanish language spoken in the coastal region of Peru.  The Spanish spoken in Coastal Peru has four characteristic forms today: the original one, that of the inhabitants of Lima (known as "limeños") near the Pacific coast and parts south, (formerly from the old section of the city from where it spread to the entire coastal region); the inland immigrant sociolect (more influenced by Andean languages); the Northern, in Trujillo, Chiclayo or Piura; and the Southern.  The majority of Peruvians speak Peruvian Coast Spanish, as Peruvian Coast Spanish is the standard dialect of Spanish in Peru.

East Frisian Low Saxon: East Frisian Low German or East Frisian Low Saxon is one of the Friso-Saxon dialects, a West Low German dialect spoken in the East Frisian peninsula of northwestern Lower Saxony.  It is used quite frequently in everyday speech there.  About half of the East Frisian population in the coastal region uses "Platdüütsk".  A number of individuals, despite not being active speakers of Low Saxon, are able to understand it to some extent.  However, both active and passive language skills are in a state of decrease.

Unno: Unno was a duke from the medieval Frisian shire of Rüstringen.

Frisia: Frisia (West Frisian: "Fryslân" ; Dutch: "Friesland" ) is a coastal region along the southeastern corner of the North Sea in what today is mostly a large part of the Netherlands, including modern Friesland, and smaller parts of northern Germany.  Frisia is the traditional homeland of the Frisians, a Germanic people that speaks Frisian languages, which together with English and Scots form the Anglo-Frisian language group.

East Frisian Peninsula: The East Frisian Peninsula (German: "Ost-Friesland" ) refers to the North Sea coastal region of Germany between the bays of Dollart and Jade.  It is distinct from East Frisia ("Ostfriesland") which is a historic and cultural region that forms the western and central sections of the peninsula.

Timboroa: Timboroa (also Timbaroa and Tomborou) is a town in Baringo County, Kenya.  It is located near the border with Uasin-Gishu County with the boundary being the most northwesterly point of Timboroa Forest leading on to Tinderet Forest in a westerly direction.  Timboroa is very notable in Kenya because it lies along the Equator Line.  The area is mainly covered with Bamboos Grasses making the area to have a very beautiful scenery.  Other small townships located in Timboroa area are Hilloti (Corruption from English Hill Tea), Mumberes, Equator, Makutano, Mlango Moja through to Mlango Tano.The region boasts of great athletes both male and female main example is Barmasai.

Bodegisel: Bodegisel (died 585 or 588) was a Frankish duke ("dux").  He was the son of Mummolin, duke of Soissons, and served the kings Chilperic I and Childebert II.  According to Hans-Walter Herrmann and Ulrich Nonn, confusion between Bodegisel and a later duke named Bobo is responsible for the semi-legendary duke Boggis who appears in sources from the ninth century on.  Bobo was a member of an illustrious Austrasian family and a nephew of the deacon Adalgisel Grimo (died 634), but where his dukedom was located is unknown.

Mormonism in the Pacific Northwest: Mormonism has had a long history in the Pacific Northwest of the United States.  Mormons have had a large influence on the region's development, as they settled throughout the states of Idaho, Oregon, and Washington, and took part in the construction of the region's early infrastructure, as well as worked in the lumber mills and mines across these states.  Today, despite a period of discrimination based on their religious affiliation, the region boasts a relatively large population of Church of Latter-Day Saints members compared to other parts of the United States outside of Utah.

Supporting paragraphs: Unno Frisia
Answer: Frisia