Conversation so far:
When did the original line up begin playing together?
January 1969, Relf and McCarty organised a new group.
How many members were in the new group?
This quintet -- Relf on guitar and vocals, McCarty on drums and vocals, plus bassist Louis Cennamo, pianist John Hawken, and Relf's sister Jane.
Did they record an album during this time?
released a pair of albums on Elektra (US) and Island (UK-ILPS 9112).
How did the albums do in the charts?
CANNOTANSWER.
Did they go on tour?
).
In February 1970 they embarked on a North American tour.

Question: When did the original lineup stop playing together?
Self-contained rewrite: When did the original lineup of the  Renaissance (band)stop playing together?