Haeckel became substantially more frail, with a broken leg (thigh) and broken arm. [3] He sold the mansion Medusa ("Villa Medusa") in 1918 to the Carl Zeiss foundation. [3] August 9 , 1919 . Ernst Haeckel died on August 9 , 1919 . Found Here: http://en.wikipedia.org/wiki/Ernst_Haeckel and Here: http://pixs.media.mit.edu/pictures/show/12497 Posted by Tim