Friesland

province of the Netherlands

11 dated entries naming Friesland, drawn from 10 separate years between 251 CE and 1498 CE. Nothing here is written by us: each line is the sentence a Wikipedia year article used, and the link beside it opens the exact revision.

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3rd century

251The prosperity of Roman Britain declines during this period, as the Germanic tribes of the Franks and Saxons, whose homelands are in Friesland and the Low Countries, make raids around the southeast coast.source

8th century

734Battle of the Boarn: The Franks under Charles Martel, mayor of the palace of Neustria and Austrasia, defeat the Frisians near the mouth of the River Boarn (now the Dutch province of Friesland). During the battle, the Frisian army is beaten and King Poppo is killed. The Franks gain control of the Frisian lands west of the Lauwers (Netherlands), and begin plundering the pagan sanctuaries. The Frisians become Frankish vassals, apart from the tribes living in East Frisia in present-day Germany.source

10th century

1000Gosse Ludigman, governor (potestaat) of Frieslandsource

11th century

1024Bruno II, margrave of Friesland (d. 1057)source

14th century

1323March 6 – Treaty of Paris: Count Louis I relinquishes Flemish claims over the County of Zeeland. He acknowledges William II the Good as count of Avesnes, Holland, and Zeeland as a state within the Holy Roman Empire. William occupies most of the Bishopric of Utrecht and tries to conquer Friesland (or Frisia) but is repelled by Governor Hessel Martena.source
1396August 29 – The Battle of Schoterzijl is fought in the third of the Friso-Hollandic Wars between Holland, led by Albert I, Duke of Bavaria, and Friesland, a semi-independent kingdom, led by Juw Juwinga. Although Juwinga is killed in battle, the Frisians are able to hold onto independence.source

15th century

1411March 4 – Friso-Hollandic Wars: Friesland soldiers capture the Netherlands city of Staveren, the last Netherlands stronghold in Friesland, after a bitter winter prevents ships from both sides from crossing the Zuiderzee and freezes the moat around the city walls.source
1420April 30 – Great Frisian War: In a war that began 70 years earlier in 1350 The Skieringers, led by Sikke Sjaarda, capture the city of Bolsward (part of Friesland in the modern Netherlands) from the wealthier Fetkeapers. The allies of the Fetkeapers, led by Focko Ukena, then react and make a counterattack on May 12 at Palesloot near Hindeloopen.source
1421July 15 – A ceasefire is declared in the Great Frisian War as the representatives warring parties agree to a treaty at the city of Greetsiel in what is now the German region of Ostfriesland. A boundary is set at the Lauwers River in the Netherlands with the territory to the west (Friesland) going to the Frisian rebel group, the Skieringers. The lands to the east Groningen go the Fetkeapers.source
1498June 10 – The Battle of Laaksum is fought in Friesland in the Netherlands at Stavoren and Warns, bringing an end to the civil war fought for almost a century between the Vetkopers and Schieringers. The Scheringers are triumphant after agreeing to allow Albert III, Duke of Saxony to annex Friesland in return for Albert's protection.source
1498March 21 – In Friesland, in the Netherlands, during the ongoing civil war between the Vetkopers and Schieringers, the Schieringers seek out the help of Albrecht III, Duke of Saxony at the cost of losing Frisian independence.source