You forgot about Lenin and the dadaist movement ... that one's actually real (well, maybe ... Hugo Ball writes about the balalaika orchestra playing at Cabaret Voltaire and some weird Russian-looking chap visiting).
Tom Stoppard wrote a great play, "Travesties", about Joyce, Lenin and Tristan Tsara (sp?) all being in Zurich at the same time.
Got to look for that, thanks! (The spelling is Tzara, btw ... bag of hot air mostly, but fun hot air for sure!)