Conversation so far:
When was Sandy Denny in the band Fairport Convention?
Denny became the obvious choice.
who else was in the band with her?
Simon Nicol.
did they release an album?
three albums.
when was the first album released?
What We Did on Our Holidays.
what was the name of the second album?
Unhalfbricking.
what was the name of the third album?
Liege & Lief.
when did she join Fotheringay?
Denny left Fairport Convention in December 1969 to develop her own songwriting more fully.
What happened after she left Fairway Convention?
she formed her own band, Fotheringay, which included her future husband, Australian Trevor Lucas, formerly of the group Eclection.
Did Fotheringay release any albums?
They created one self-titled album.
What year was that album released?
CANNOTANSWER.

Question: what was the most well known song on this album?
Self-contained rewrite: what was the most well known song on Fotheringay's album?