Pope Gregory IV died on 844-01-11.
Pope Gregory IV died on January 25, 844.
There were about 20 popes with the name Gregory, be more specific eg Pope Gregory iV
Pope Gregory IV was the head of the Catholic Church from October 827 to his death on January 25, 844 AD.
Pope Gregory VII
Pope Gregory VII
Pope Gregory died leaving Henry iv to do as he pleased
Pope Gregory IV ruled from 827 to January 844.
. Emperor Henry IV
Pope Gregory VI died in 1048.
Henry IV of Germany told him to resign. In exchange, Gregory excommunicated Henry and remained as pope.
Gregory IV of Naples died in 915.
Gregory IV of Athens died in 1829.