Who wrote Scarlatti's sonatas?

[petite joueuse]

This is not a trick question!!

I came across an article which suggested that Queen Maria Barbara (Scarlatti's patron) wrote them!!

So I started thinking..............

Any other famous bits of music that were not actually written by who we think they are? (If you see what I mean)

Isn't there something dodgy about Albinoni's Adagio?

[SuzyMac]

Greensleeves is the obvious suggestion - Henry VIII? I'm dubious...

[princessmoose]

Albinoni's Adagio - Was it not arranged by someone using something Albinoni had composed? So it wasn't entirely Albinoni's, well the music was but not the arrangement.

[anacrusis]

Clara Schumann some of Robert's works? Not sure about this one, but maybe someone knows?