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(grēsŏnz`, Fr. grēzôN`), Ger. Graubünden, Ital. Grigioni, Romansch Grischun, canton (1990 pop. 169,005), 2,746 sq mi (7,112 sq km), E Switzerland, bordering on Italy and Austria. ChurChur
, Fr. Coire, Romansh Cuera, city (1990 pop. 30,236), capital of Grisons canton, E Switzerland, on the Plessur River. Chur is an important transportation junction near the Rhine Valley.
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 is the capital. The largest and most sparsely populated of the cantons, it is a region of Alpine peaks and glaciers, of forested highlands, and of fertile valleys. The Engadine Valley and the Swiss National Park, in the eastern part of the canton, attract large numbers of tourists. St. Moritz, Davos, and Arosa are the chief resorts. Industry is generally limited and is centered at Chur.

About a fourth of the population speaks Romansh, a Rhaetic-Romantic language; a smaller minority speaks Italian, and the rest, German. The Romansch-speakers live in the Vorderrhein valley (which they call Surselva) and in the Engadine. Italian-speakers inhabit the three southern prongs of the canton: the Val Mesolcida, the Val Bregaglia, and the Val di Poschiavo.

A part of Rhaetia under the Roman Empire, the territory preserved Roman laws and customs, although it nominally passed to the Ostrogoths (493) and to the Franks (537). In the 9th cent. the bishops of Chur began to attain prominence in the region. The bishops (after 1170 the prince-bishops) allied themselves with the rising power of the Hapsburgs. Their power, however, was checked and gradually broken by three local leagues founded between 1367 and 1436—the League of God's House, the Graubünden, or Gray League, and the League of Ten Jurisdictions. The three leagues, composed of communes and feudal lords, allied and joined with the Swiss Confederation. In 1512 they conquered the ValtellinaValtellina
, Alpine valley of the upper Adda River, c.75 mi (120 km) long, in Lombardy, N Italy, extending from Lake Como to the Stelvio Pass. The main towns are Sondrio and Tirano. The valley is a fertile agricultural region, known for its wine.
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 from Milan.

Only part of the population accepted the Reformation (1524–26). In the Thirty Years War the country was rent by bloody strife between the Catholic party, siding with Spain and the Holy Roman emperor, and the Protestants, supporting Venice and France. With the Valtellina the chief bone of contention, the struggle was one of European importance. In 1799 the Grisons was forced by the French to enter the Helvetic RepublicHelvetic Republic
, 1798–1803, Swiss state established under French auspices. In Sept., 1797, several exiled Swiss leaders in France (notably Frédéric César de La Harpe) formally urged the French Revolutionary government (the Directory) to help in
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, and in 1803 it became a Swiss canton under Napoleon's Act of Mediation. The Valtellina was definitively lost at the Congress of Vienna (1815).

References in periodicals archive ?
Most of the Swiss finishers (n = 138,809) were from Canton of Zurich (20.5%), Grisons (19.2%), and Berne (10.3%).
Low (0.5-2.5 and 2-4/ [km.sup.2]) or medium densities (9.7 deer/[km.sup.2]) with prevalence estimates of 0% were found in Switzerland (Saint Gall, Liechtenstein, and Grisons, respectively) (14).
This cozy, Romansh-speaking village in the heart of Grison Alps, located between Davos and St Moritz, can be reached from Zurich by car or train in two and a half hours.
There has been minor damage but nobody was injured," a foreign news agency quoted Thomas Hobi, a spokesman for the Grisons police, as saying.
In Germany and Switzerland the alliance was robust but even in Grisons there were groups championing the automobile, in particular those not served by railroads or wanting to develop tourism.
DAVOS - This resort lies in the heart of the Grisons region and offers over 300km of world-class skiing suitable for all grades.
The final group, those who speak Romansch, in the Grisons, or Graubunden, the thinly populated areas in the east, remain a linguistic curiosity.
One of them, Franco Vanini (, had a good selection of rare Alpine minerals, including cafarsite and tilasite from Monte Cervandone, Italy/Switzerland, and a complete suite of the minerals of Falotta, Grisons, Swiss Alps: grishunite, cabalzirite, palenzonaite and various others.
At the beginning of the year, OFEFP, the Federal Environment Office, selected two alluvial mountain sites and a marshland site in agreement with the Valais, Grisons and Lucerne Cantons, as well as with representatives of the Entlebuch biosphere reserve recognised by UNESCO.
Italian is spoken in Ticino and four southern valleys of Grisons.
Buendner Bergkaese from the Grisons aged a minimum of eight months.