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Coat of arms of Cologny
Coat of arms
Cologny is located in Switzerland
Coordinates: 46°13′N 06°11′E / 46.217°N 6.183°E / 46.217; 6.183Coordinates: 46°13′N 06°11′E / 46.217°N 6.183°E / 46.217; 6.183
Country Switzerland
Canton Geneva
District n.a.
 • Mayor Maire
Pierre-Yves Vallon
 • Total 3.67 km2 (1.42 sq mi)
Elevation 460 m (1,510 ft)
Population (Dec 2015)
 • Total 5,500
 • Density 1,500/km2 (3,900/sq mi)
Demonym(s) Colognotes (French)
Postal code 1223
SFOS number 6617
Surrounded by Bellevue, Chêne-Bougeries, Choulex, Collonge-Bellerive, Geneva (Genève), Pregny-Chambésy, Vandœuvres
SFSO statistics
Largest groups of foreign residents 2013
Nationality Amount  % total
 France 555 11.1
 UK 159 3.2
 Italy 136 2.7
 Portugal 111 2.2
 USA 84 1.7
 Belgium 72 1.4
 Germany 68 1.4
 Spain 55 1.1
 Russia 53 1.1
 Sweden 42 0.8

Cologny is a municipality in the Canton of Geneva, Switzerland.

Cologny is first mentioned in 1208 as Colognier.

The oldest trace of a settlement in the area is a Neolithic lake side village which was discovered near the village of La Belotte. The Lake Geneva area was conquered by the Romans in the 2nd century. They built a road from Corsier through the Cologny area to Frontenex during their 2 centuries of residency.

During the Middle Ages it was part of the lands of the Counts of Geneva, before it was acquired by the Bishopric of Geneva. The village church of Saint Peter was placed under the parish of Vandœuvres in 1406, indicating that it was probably built before the 15th century. In 1536 Cologny, joined the new faith of the Protestant Reformation as nearby Geneva became a center of reform. Two years later, in May 1538 a treaty between Bern and Geneva placed Cologny in the city of Geneva. The town council of Cologny met for the first time on 9 December 1800, after Geneva had been annexed into France following the 1798 French invasion of Switzerland.

In late 16th century and into the 17th century a number of Geneva publishers moved to or set up offices in Cologny. By claiming Cologny or Colonia Allobrogum as the publication location, they were able to circumvent French laws which banned books from Geneva. Beginning in the 18th century elegant chalets sprung up along the shores of Lake Geneva in Cologny. One of the most famous in Villa Diodati in which Lord Byron, John Polidori, Mary Shelley and Percy Bysshe Shelley spent part of the Year Without a Summer in 1816. Due to the poor weather, the guests spent days indoors telling each other horror stories. Mary Shelley’s Frankenstein and John Polidori’s The Vampyre, the first modern vampire story, both resulted. The mathematicien Louis Necker (1730–1804), elder brother of the Statesman Jacques Necker, died in Cologny.



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