http://www.strangehistory.net/2015/05/10/the-rudest-diplomatic-letter-ever-written/
If this isn't true, it should be.
Excellent ;D
Heh.
Could have been written by several folks around here.
While the actual words are probably later productions than the original time attributed, there was certainly no love lost between the Ottomans and the various Slavs, notably the Cossacks.
They especially hated their underling, the Crimean Khanate, because they had a long history of raiding their Christian neighbors for slaves and selling many to the Turks. So it wouldn't surprise me if any original replies were of the same nastiness. ;D