Conversation so far:
How did Boris die?
23 April 2007.
what caused his death?
congestive heart failure.
where was his funeral?
had lain in repose in the Cathedral of Christ the Saviour in Moscow.
how many people attended?
CANNOTANSWER.
what else happened during his funeral?
his body had lain in repose.

Question: what else is noteable about his death?
Self-contained rewrite: What else is noteable besides the body being laid in repose about Boris Yeltsin death?