Question: the city ,in the Vecht valley of the Salland region is at the heart of what Provence, was a commercial and defensive confederation of merchant guilds and their market towns ?

Context paragraphs:
Nottingham Guild Hall: Nottingham Guild Hall was built on Weekday Cross in Nottingham.  Originally a hall for the merchant Guilds, it became the Court House and Town Hall of the Nottingham Corporation.

Market cross: A market cross, or in Scots, a mercat cross, is a structure used to mark a market square in market towns, where historically the right to hold a regular market or fair was granted by the monarch, a bishop or a baron.  Market crosses were originally from the distinctive tradition in Early Medieval Insular art of free-standing stone standing or high crosses, often elaborately carved, which goes back to the 7th century.  Market crosses can be found in most market towns in Britain.  British emigrants often installed such crosses in their new cities, and several can be found in Canada and Australia.

List of guilds in the United Kingdom: This is a list of guilds in the United Kingdom.  It includes guilds of merchants and other trades, both those relating to specific trades, and the general guilds merchant in Glasgow and Preston.  No religious guilds survive, and the guilds of freemen in some towns and cities are not listed.  Almost all guilds were founded by the end of the 17th century, although some went out of existence and were refounded in the 20th century.

Pale of Settlement: The Pale of Settlement (Russian: Черта́ осе́длости , "chertá osédlosti ", Yiddish: דער תּחום-המושבֿ‎ , "der tkhum-ha-moyshəv ", Hebrew: תְּחוּם הַמּוֹשָב‎ , "tẖum hammosháv ") was a western region of Imperial Russia with varying borders that existed from 1791 to 1917, in which permanent residency by Jews was allowed and beyond which Jewish permanent residency and in a certain period even temporary stay was mostly forbidden.  However, Jews were excluded from residency in a number of cities within the Pale, and a limited number of categories of Jews—those ennobled, with university educations or at university, members of the most affluent of the merchant guilds and particular artisans, some military personnel and some services associated with them, as well as the families, and sometimes the servants of these—were allowed to live outside it.  The archaic English term "pale" is derived from the Latin word "palus ", a stake, extended to mean the area enclosed by a fence or boundary.

Kabunakama: Kabunakama (株仲間) were merchant guilds in Edo period Japan, which developed out of the basic merchants' associations known as "nakama".  The "kabunakama" were entrusted by the shogunate to manage their respective trades, and were allowed to enjoy a monopoly in their given field.

Ainnurruvar: Ainnurruvar is a medieval merchant guild in the Tamil Nadu region of India between the eighth and the 13th centuries.  .  This period, organised merchant guilds exerted considerable power and influence.  "Ainnurruvar" was one of the most prominent of these guilds.  During the Chola Empire they were regarded as the elite amongst the South Indian merchant organizations.

Market towns of Vestfold county: The Market towns of Vestfold county (Norwegian: "Kjøpstedene i Vestfold fylke" ) was an electoral district for parliamentary elections in Norway.  It comprised the market towns (Norwegian: "kjøpsteder" ) of Holmestrand, Horten, Tønsberg, Sandefjord and Larvik in Vestfold county.

Ommen: Ommen (] ) is a municipality and a Hanseatic city in the Vecht valley of the Salland region, which is at the heart of the province of Overijssel in the eastern Netherlands.  Historical records first name Ommen in the early 12th century and it was officially founded as a city in 1248.  The municipality had a population of in and covers an area of data missing km2 .

Market towns of Møre og Romsdal county: The Market towns of Møre og Romsdal county (Norwegian: "Kjøpstedene i Møre og Romsdal fylke" ) was an electoral district for parliamentary elections in Norway.  It comprised the market towns (Norwegian: "kjøpsteder" ) of Kristiansund, Molde and Ålesund in Møre og Romsdal county.

Hanseatic League: The Hanseatic League (also known as the Hanse or Hansa; Middle Low German: "Hanse", "Deutsche Hanse", Latin: "Hansa", "Hansa Teutonica" or "Liga Hanseatica ") was a commercial and defensive confederation of merchant guilds and their market towns.  Growing from a few North German towns in the late 1100s, the league came to dominate Baltic maritime trade for three centuries along the coast of Northern Europe.  It stretched from the Baltic to the North Sea and inland during the Late Middle Ages and declined slowly after 1450.

Supporting paragraphs: Ommen Hanseatic League
Answer: Overijssel