Constantin Hansen art links 

Louvre Museum Database, Paris

Metropolitan Museum of Art, New York City   NEW!  

Funen Kunstmuseum, Odense, Denmark
Select the artist's name from the drop-down list and click the "search" button

Statens Museum for Kunst (National Gallery of Denmark), Copenhagen
Click "English" at the top right to switch the default language, then click "Search"

Valtion Taidemuseo (Finnish National Gallery), Helsinki, Finland

Vejle Kunstmuseum, Denmark (in Danish)  

 
National Art Databases and Museum Inventories:

Danish Museums Online (in Danish)  
(You can switch to English by going to the very top of the site, but the viewable works are much fewer)

Joconde Database of French Museum Collections (in French)  

 

Sotheby's Sold Lot Archive
(database goes as far back as 1998; images where permitted by copyright go about as far back as 2001)

 

Constantin Hansen at The Art Renewal Center

Constantin Hansen at The Athenaeum  

Bildindex der Kunst und Architektur (in German)  
(a welcome screen is displayed for a couple of seconds before the search results appear)

Constantin Hansen at CGFA  

RKD Netherlands Imagebase   NEW!
Eclectic database of images that range from old black-and-white photos to superb, zoomable reproductions

Additional Image Search Tools:
(SafeSearch set to "strict"; go to Advanced Search (Flickr/Google) or Preferences (Bing) to change)

	Flickr: "Constantin Hansen"	All Images Image Use Allowed Commercial Use Allowed
	Google Images: "Constantin Hansen"	All Images Labeled for Reuse Labeled for Commercial Use
	Bing Images: "Constantin Hansen"

 
 

Scandinavian Art (mostly in Danish)  

 

RKD Netherlands Institute for Art History  

Union List of Artist Names (Getty Museum)  
Reference sheet with basic information about the artist and pointers to other references.

Wikipedia, the "Open Content" Encyclopedia
Biographical info