hmmm, I swear I read somewhere on these forums that some PM parts were sub-licensed to Sylvanian Familes for a brief time, so you can find a few accessories that are the same between the two lines. (one part I remember specifically was a picnic basket, but I could be wrong). I do know I have held Sylvanian Family bedroom sets in my hand, and without a side-by-side comparison, they look almost identical to PM victorian bedroom furniture. PM is also big in Japan, just as Sylvanian Families is also well-known in Europe (and to a slightly lesser degree as with PM) in USA.
But I'm trying to confirm that possibly faulty memory of mine...I swear I read it here somewhere in the past year or 2, but I can't find the thread if it existed.
One thing's for sure, the parts do translate nicely between the lines, except Sylvanian Familes seem to be WAAAAY more expensive than PM.