Frisia in the context of "German Bight"

Friesland (/ˈfriːzlənd/ FREEZ-lənd; Dutch: [ˈfrislɑnt] ; official West Frisian: Fryslân [ˈfrislɔ̃ːn] ), historically and traditionally known as Frisia (/ˈfriːʒə/), is a province of the Netherlands located in the country's northern part. It is situated west of Groningen, northwest of Drenthe and Overijssel, north of Flevoland, northeast of North Holland, and south of the Wadden Sea. As of January 2023, the province had a population of about 660,000, and a total area of 5,753 km (2,221 sq mi).

The land is mostly made up of grassland and has numerous lakes. The area of the province was once part of the ancient, larger region of Frisia, which gave the province its name. Friesland today is the home of the Netherlands's ethnic Frisian people. The official languages of Friesland are West Frisian and Dutch, and almost all West Frisian speakers are bilingual with Dutch.

A cog is a type of ship that was used during the Middle Ages, mostly for trade and transport but also in war. It first appeared in the 10th century, and was widely used from around the 12th century onward. Cogs were clinker-built, generally of oak. Cogs were fitted with a single mast and a single square sail. They were used primarily for trade in north-west medieval Europe, especially by the Hanseatic League. Typical seagoing cogs were from 15 to 25 meters (49 to 82 ft) long, 5 to 8 meters (16 to 26 ft) wide, and were of 30–200 tons burthen. Cogs were rarely as large as 300 tons although a few were considerably larger, over 1,000 tons.

Although the name cog is recorded as early as the 9th century, the seagoing vessel of that name seems to have evolved on the Frisian coast during the 12th century. Cogs progressively replaced Viking-type vessels such as knarrs in northern waters during the 13th century. Cogs could carry more cargo than knarrs of a similar size. Their flat bottoms allowed them to settle on a level in harbour, making them easier to load and unload. Their high sides made them more difficult to board in a sea fight, which made them safer from pirates.

Groningen (/ˈɡroʊnɪŋən/ GROH-ning-ən, UK also /ˈɡrɒnɪŋən/ GRON-ing-ən; Dutch: [ˈɣroːnɪŋə(n)] ; Gronings: Grunn; West Frisian: Grinslân [ˈɡrẽːslɔ̃ːn]) is the northeasternmost province of the Netherlands. It borders on Friesland to the west, Drenthe to the south, the German state of Lower Saxony to the east, and the Wadden Sea to the north. As of January 2023, Groningen had a population of about 596,000, and a total area of 2,955 km (1,141 sq mi).

Historically the area was at different times part of Frisia, the Frankish Empire, the Holy Roman Empire, and the Dutch Republic, the precursor state of the modern Netherlands. In the 14th century, the city of Groningen became a member of the Hanseatic League.

Boniface OSB (born Wynfreth; c. 675 –5 June 754) was an English Benedictine monk and leading figure in the Anglo-Saxon mission to the Germanic parts of Francia during the eighth century. He organised significant foundations of the church in Germany and was made Archbishop of Mainz by Pope Gregory III. He was martyred in Frisia in 754, along with 52 others, and his remains were returned to Fulda, where they rest in a sarcophagus which remains a site of Christian pilgrimage.

Boniface's life and death as well as his work became widely known, there being a wealth of material available – a number of vitae, especially the near-contemporary Vita Bonifatii auctore Willibaldi, legal documents, possibly some sermons, and above all his correspondence. He is venerated as a saint in the Christian church and became the patron saint of Germania, known as the "Apostle to the Germans".

The Frisians (/ˈfriːʒənz/) are an ethnic group indigenous to Northwestern Europe on the coastal regions of northern Netherlands, north-western Germany and southern Denmark. They inhabit an area known as Frisia and are concentrated in the Dutch province of Friesland and, in Germany, East Frisia and North Frisia (which was a part of Denmark until 1864).

The Frisian languages are spoken by more than 500,000 people; West Frisian is officially recognised in the Netherlands (in the Dutch province Friesland) while North Frisian and Saterland Frisian are recognised as regional languages in Germany.

In Dutch history, the year 1672 is referred to as the Rampjaar (Dutch: [ˈrɑmpjaːr] ; Disaster Year). In May 1672, following the outbreak of the Franco-Dutch War and its peripheral conflict the Third Anglo-Dutch War, France, supported by Münster and Cologne, invaded and nearly overran the Dutch Republic. At the same time, it faced the threat of an English naval blockade in support of the French endeavor, though that attempt was abandoned following the Battle of Solebay. A Dutch saying coined that year describes the Dutch people as redeloos ("irrational"), its government as radeloos ("distraught"), and the country as reddeloos ("beyond salvation"). The cities of the coastal provinces of Holland, Zealand and Frisia underwent a political transition: the city governments were taken over by Orangists, opposed to the republican regime of the Grand Pensionary Johan de Witt, ending the First Stadtholderless Period.

By late July however, the Dutch position had stabilised, with support from Holy Roman Emperor Leopold I, Brandenburg-Prussia, and Spain; this was formalised in the August 1673 Treaty of the Hague, which Denmark joined in January 1674. Following further defeats at sea at the hands of the Dutch navy, the English, whose parliament was suspicious of King Charles's motives in his alliance with France, and with Charles himself wary of French domination of the Spanish Netherlands, settled a peace with the Dutch republic in the Treaty of Westminster in 1674. With England, Cologne, and Münster having made peace with the Dutch and with the war expanding into the Rhineland and Spain, French troops withdrew from the Dutch Republic, retaining only Grave and Maastricht. To offset these setbacks, Swedish forces in Swedish Pomerania attacked Brandenburg-Prussia in December 1674 after Louis threatened to withhold their subsidies; this sparked Swedish involvement in the 1675–1679 Scanian War and the Swedish-Brandenburg War whereby the Swedish army tied up the armies of Brandenburg and some minor German principalities plus the Danish army in the north.

Middle Francia (Latin: Francia media) was a short-lived Frankish kingdom which was created in 843 by the Treaty of Verdun after an intermittent civil war between the grandsons of Charlemagne resulted in division of the united empire. Middle Francia was allocated to Emperor Lothair I, the eldest son and successor of Emperor Louis the Pious. His realm contained the imperial cities of Aachen (the residence of Charlemagne) and Pavia, but it lacked any geographic or cultural cohesion, which prevented it from surviving and forming a nucleus of a larger state, as was the case with West Francia (which became the Kingdom of France) and East Francia (which became the Kingdom of Germany).

Middle Francia was situated between the realms of East and West Francia and comprised the Frankish territory between the rivers Rhine and Scheldt, the Frisian coast of the North Sea, the former Kingdom of Burgundy (except for a western portion, later known as Bourgogne) and Provence, as well as parts of northern Italy. Following the 855 partition, 'Middle Francia' became only a geographic term, and the bulk of its territory was reorganised as Lotharingia, named after Lothair I's namesake son. One of the reasons Middle Francia was a short-lived state was its geographic situation between two more powerful states, each of which had much greater influence in Europe than Middle Francia.

North Frisia (/ˈfriːʒə/; German: Nordfriesland; North Frisian: Nordfraschlönj; Danish: Nordfrisland; Low German: Noordfreesland) is the northernmost portion of Frisia, located in Schleswig-Holstein, Germany, between the rivers Eider and Wiedau. It also includes the North Frisian Islands and Heligoland. The region is traditionally inhabited by the North Frisians.

Porvoonjoki (Porvoo River, Swedish: Borgå å) is a small river in Finland. The medieval town of Porvoo is situated in the river delta. It is the main river of the Porvoonjoki drainage system, the sources of which are located on the southern slopes of Salpausselkä in Kärkölä, Hollola and Lahti. The river flows through Orimattila, Pukkila, Askola and Porvoo into the Gulf of Finland. The agricultural landscape of the Porvoo River with its ancient settlements, villages and manors together with the old town of Porvoo is part of the national landscapes of Finland.

Porvoonjoki was originally a trade route for the Tavastians and its original name may have been Kukinjoki. The name would have its roots in the Friesian nomenclature of kugg, which would correspond to other similar trading places on the coast.