<human>:  Was 847 Pope Leo same iteration of his name as Ivan the Terrible?
<bot>: Yes, 847 Pope Leo was the same iteration of his name as Ivan the Terrible. Pope Leo in 847 AD was the fourth Leo to have that name and was called Leo IV. Ivan the Terrible was the 4th Tsar to have the name Ivan and was known as Ivan IV Vasilyevich. So they are the same iteration of their names.