“In those tumultuous times, she lived a comfortable and peaceful life.”
Well that was pretty much a miracle! “Somewhere in her youth, or childhood, [she] must have done something good.”
Anne was also helped by a lack of interest in religion, unusual for that age. When Mary was on the throne she converted from Lutheranism to Catholicism. Princess Elizabeth, in contrast, came very close to trial for treason, which would have meant death.