Now located in Berlin’s Alte Nationalgalerie:

As an interesting “oh by the way”… Adolf Hitler was a great admirer of Böcklin and in 1933 acquired this painting, hanging it first in the Berghof in Obersalzberg and then, after 1940, in the New Reich Chancellery in Berlin. Fortunately, this version (my favorite) survived the war, unlike another Island of the Dead version that did not.