There is no record substantiating that Pope John X had definitely died before Leo VI was elected since John X was already imprisoned by Marozia and was out of public view.
Tidak ada catatan yang menyebutkan bahwa Paus Yohanes X wafat sebelum Leo VI dipilih, karena Yohanes X sudah dipenjarakan dan dijauhkan dari publik oleh Marozia.