# Châteaudun

Châteaudun (French pronunciation:) is a commune in the Eure-et-Loir department in northern France. It is a sub-prefecture of the department. It was the site of the Battle of Châteaudun during the Franco-Prussian War.

## Geography

Châteaudun is located about 45 km northwest of Orléans, and about 50 km south-southwest of Chartres. It lies on the river Loir, a tributary of the Sarthe.

## History

Châteaudun (Latin Castrodunum), which dates from the Gallo-Roman period, was in the middle ages the capital of the County of Dunois.
The streets, which radiate from a central square, have a uniformity due to the reconstruction of the town after fires in 1723 and 1870.

## Employment

The area is rich agricultural land, but a major local employer is the Châteaudun Air Base just to the east of the town, and much larger than the town itself.

## Population

| Year | Pop. | ±% p.a. |
| 1793 | 5,957 | — |
| 1800 | 6,046 | +0.21% |
| 1806 | 6,161 | +0.31% |
| 1821 | 6,042 | −0.13% |
| 1831 | 6,461 | +0.67% |
| 1836 | 6,776 | +0.96% |
| 1841 | 6,580 | −0.59% |
| 1846 | 6,788 | +0.62% |
| 1851 | 6,745 | −0.13% |
| 1856 | 6,542 | −0.61% |
| 1861 | 6,719 | +0.54% |
| 1866 | 6,781 | +0.18% |
| 1872 | 6,552 | −0.57% |
| 1876 | 6,694 | +0.54% |
| 1881 | 7,036 | +1.00% |
| 1886 | 7,284 | +0.70% |
| 1891 | 7,147 | −0.38% |
| 1896 | 7,460 | +0.86% |
| Year | Pop. | ±% p.a. |
| 1901 | 7,146 | −0.86% |
| 1906 | 7,147 | +0.00% |
| 1911 | 7,296 | +0.41% |
| 1921 | 6,587 | −1.02% |
| 1926 | 6,558 | −0.09% |
| 1931 | 6,790 | +0.70% |
| 1936 | 7,057 | +0.77% |
| 1946 | 8,145 | +1.44% |
| 1954 | 9,687 | +2.19% |
| 1962 | 11,982 | +2.69% |
| 1968 | 14,450 | +3.17% |
| 1975 | 15,338 | +0.86% |
| 1982 | 15,319 | −0.02% |
| 1990 | 14,511 | −0.68% |
| 1999 | 14,543 | +0.02% |
| 2007 | 13,963 | −0.51% |
| 2012 | 13,039 | −1.36% |
| 2017 | 13,195 | +0.24% |
Graphs are unavailable due to technical issues. Updates on reimplementing the Graph extension, which will be known as the Chart extension, can be found on Phabricator and on MediaWiki.org. :
Source: EHESS and INSEE (1968-2017) :

## Main sights

The town has a château, founded in the 10th century, known for being the first on the road to Loire Valley from Paris. Châteaundun also has a museum, the "Musée des beaux arts et d'histoire naturelle". The museum is diverse, the most popular exhibition being the big collection of stuffed birds. In addition, there are often temporary exhibitions, recent examples including the war of Asia, ancient Egypt and insects.

### Churches

* Saint-Valérien
* La Madeleine
* Saint-Jean-de-la-Chaîne
* Saint-Lubin ruins
* Saint-Lubin ruins
* Notre-Dame-du-Champdé chapel (now cemetery entrance)
* La Boissière chapel

### Medieval houses

* Cuirasserie street and Huileries street angle
* Cuirasserie street and Huileries street angle
* Louis Esnault house
* Château's architects' house
* Virgin's house
* Virgin's house (detail)

## Personalities

Châteaudun was the birthplace of:
* Pierre Guédron (1570–1620), composer
* Nicolas Chaperon (1612–1656) painter
* Edmond Modeste Lescarbault (1814), doctor and amateur astronomer
* Romain Feillu (1984) road racing cyclist
* Brice Feillu (1985) road racing cyclist

## Twin towns - sister cities

Châteaudun is twinned with:
* Arklow, Ireland
* Kroměříž, Czech Republic
* Marchena, Spain
* Schweinfurt, Germany
* Trois-Rivières, Canada

## Gallery

* Châteaudun (Eure-et-Loir) Donjon and chapel of the château
* Fountain and façade of the town hall of Châteaudun
* A member of the FFI poses with his Bren gun at Châteaudun - 1944

## Climate

Climate data for Châteaudun (1991–2020 normals, extremes 1952–present) :
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 15.7 (60.3) | 21.0 (69.8) | 25.4 (77.7) | 28.0 (82.4) | 32.1 (89.8) | 37.8 (100.0) | 41.7 (107.1) | 39.3 (102.7) | 35.2 (95.4) | 29.9 (85.8) | 21.7 (71.1) | 17.1 (62.8) | 41.7 (107.1) |
| Mean daily maximum °C (°F) | 7.1 (44.8) | 8.6 (47.5) | 12.6 (54.7) | 15.9 (60.6) | 19.4 (66.9) | 23.0 (73.4) | 25.8 (78.4) | 25.8 (78.4) | 21.8 (71.2) | 16.6 (61.9) | 10.9 (51.6) | 7.6 (45.7) | 16.3 (61.3) |
| Daily mean °C (°F) | 4.3 (39.7) | 4.8 (40.6) | 7.8 (46.0) | 10.4 (50.7) | 13.9 (57.0) | 17.3 (63.1) | 19.6 (67.3) | 19.6 (67.3) | 16.0 (60.8) | 12.1 (53.8) | 7.5 (45.5) | 4.7 (40.5) | 11.5 (52.7) |
| Mean daily minimum °C (°F) | 1.4 (34.5) | 1.0 (33.8) | 3.0 (37.4) | 4.8 (40.6) | 8.4 (47.1) | 11.6 (52.9) | 13.4 (56.1) | 13.3 (55.9) | 10.2 (50.4) | 7.6 (45.7) | 4.1 (39.4) | 1.8 (35.2) | 6.7 (44.1) |
| Record low °C (°F) | −18.8 (−1.8) | −17.2 (1.0) | −11.8 (10.8) | −6.3 (20.7) | −2.3 (27.9) | 1.2 (34.2) | 4.2 (39.6) | 3.6 (38.5) | 0.7 (33.3) | −4.6 (23.7) | −13.4 (7.9) | −16.3 (2.7) | −18.8 (−1.8) |
| Average precipitation mm (inches) | 51.5 (2.03) | 41.3 (1.63) | 44.2 (1.74) | 46.9 (1.85) | 56.1 (2.21) | 48.2 (1.90) | 51.9 (2.04) | 42.9 (1.69) | 42.7 (1.68) | 61.0 (2.40) | 55.1 (2.17) | 61.5 (2.42) | 603.3 (23.75) |
| Average precipitation days (≥ 1.0 mm) | 10.5 | 9.3 | 8.9 | 9.0 | 9.1 | 8.1 | 7.2 | 7.0 | 7.2 | 10.2 | 10.4 | 11.3 | 108.2 |
| Mean monthly sunshine hours | 64.8 | 91.9 | 144.2 | 188.7 | 215.6 | 226.4 | 237.7 | 233.0 | 186.6 | 121.1 | 72.7 | 63.0 | 1,845.7 |
| Source: Meteociel ||||||||||||||