This article is from the Progressive Music FAQ, by Phil Kime(Philip@kime.org.uk) with numerous contributions by others.
Yes, there were several. Most notably, PFM released *Storia
d'un Minuto*, *Per Un Amico*, and *L'Isola di Niente* in
Italian. Manticore (I think this was Peter Sinfield's label...he
did write the lyrics for the English verison but I have also heard
ELP started it) released *Photos of Ghosts* and *The World Became
the World* with remixed instrumentation and English vocals and
titles. These partially cover the three Italian albums. *Photos of
Ghosts* is basically all of *Per Un Amico*, plus `Generale!' which is
from *Storia d'un Minuto*. *The World Became the World* is *L'Isola
di Niente* plus the title track, from *Storia d'un Minuto*. Both
of the English versions are poor pressings, and in general, people
agree that the original Italian versions are far superior, both
technically and performance-wise.
Other bands to do the same are RDM (*Contamination* is the English
version of *Contaminazione*) and Maxophone (English version has
the same title).
 
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