Tradition tells us that he died about the year 64 by being crucified upside-down on a cross under the reign of Roman Emperor Nero.
There is no actual proof of Simon Peter's death written anywhere that is reliable.
June 29 is the feast of St. Peter and St. Paul.
Peter St. Albans died in 1900.
The precise year is not known but St. Peter died between 64 and 67 AD.
Peter was crucified in Rome and was buried under what is now St. Peter's Basilica in the Vatican.
February 21 is the feast of St. Peter Damian.
St. Peter was born about the year 1 AD in Bethsaida, Galilee.
June 29 is the feast of Saints Peter and Paul.
The feast day of Peter Claver is September 9.
September 9 is the feast day of St. Peter Claver.
If this means St. Peter's Basilica in the Vatican (which is not a Cathedral) - Several liturgies are celebrated each day. You can find the schedule on the link.
St Peters Square, Rome
Tradition says that St. Peter was crucified upside down in Rome about the year 64-65 AD.