Got 47 which isn't bad. Those early ones are hard to remember. I thought the 2nd Cromwell was Thomas. Hmm, must've misremembered. Also, you've got Ethelred twice.
Ethelred the Unready doesn't fill in twice for his split reign. His name fills in for the first reign starting in 979 but not for his second beginning in 1014. You have spelled Harold Harefoot's first name as Haold.
Can you maybe not make us do each name in roman numeral style? Maybe like 1 2 3 4. Or maybe even showing all of the kings named the same when we type in it.
Thank you all for letting me know of my mistakes. I have corrected the ones I know about. Leave more comments 'bout my mistakes and I will correct them as soon as I can. TY!