Complex sentence: She is venerated in the Anglican and Lutheran churches, but has never been canonized, or officially beatified, by the Catholic Church probably because so little is known of her life aside from her writings, including the date of her death.
Split into simpler sentences: She is venerated in the Anglican and Lutheran churches, but has never been canonized, or officially beatified, by the Catholic Church. Little is known of her life aside from her writings, including the date of her death.