Friedrich Engels mentioned Hafez in an 1853 letter to Karl Marx

It is, by the way, rather pleasing to read dissolute old Hafiz in the original language, which sounds quite passable and, in his grammar, old Sir William Jones likes to cite as examples dubious Persian jokes, subsequently translated into Greek verse in his Commentariis poeseos asiaticae, because even in Latin they seem to him too obscene. These commentaries, Jones’ Works, Vol. II, De Poesi erotica, will amuse you. Persian prose, on the other hand, is deadly dull. E.g. the Rauzât-us-safâ by the noble Mirkhond, who recounts the Persian epic in very flowery but vacuous language. Of Alexander the Great, he says that the name Iskander, in the Ionian language, is Akshid Rus (like Iskander, a corrupt version of Alexandros); it means much the same as filusuf, which derives from fila, love, and sufa, wisdom, ‘Iskander’ thus being synonymous with ‘friend of wisdom’.[16]

16: "Letters: Marx-Engels correspondence". Retrieved 15 January 2012.