Collani is buried in a German military cemetary in Tallinn, Estonia, a Baltic nation just south of Finland.
Errr I hope we all atleast heard of Estonia, got an idea of where it's more or less located or be able to point it out on the map. Those forumers who live in Europe and attended school there sure can... hehe.
I remember drilling it in at scool quite well: Estland, Letland, Litouwen ( Estonia, Latvia, Lithuania). :p