Well i've seen the movie, Ludwig II - by Visconti, starring Helmut Berger as King Ludwig II and Romy Schneider as Empress Elisabeth of Austria-Hungary - and that keeps to the official version. Also one of my book stated that shots were heard, and thus it is thought, or guessed should be better, he could have been assassinated too. Yet my opinion is that he just lost it all, as became clear when he got older - and lets not forget, the Wittelsbachs had quite a few members that were a bit odd. Empress Elisabeth of Austria had a strong death-wish and was obsessed with her beauty, and wanted freedom, Archduke Rudolf, Crown Prince of Austria, son of Sisi, also had the wish for freedom and a strong death-wish, much alike is mother. Ludwig's brother went crazy too, to put it like that. Thus I think Ludwig killed himself on purpose, seems to be a plague for the Witlesbachs - the strong death-wish. Anyway, why there are so much conspiracies: Simply because of the shots heared. But I think he just drowned, killing himself on purpose.