Originally posted by Paul Dirac
That one especially was one I was thinking of. For those who might be interested, I found just this:
I was curious if such unflattering biographies are considered at all valid within the Church.
Not sure what you mean by "biographies ... considered valid
... within the Church". The Church does not have an 'alternate [unflattering] biography' of Stephen VI, if that's what you mean:
And, btw, you might want to check the credibility of the sources you cite. No serious historian believes that 'Pope' Joan actually existed: