Clement of Rome, writing around 95 CE (1 Clement), spoke in general terms about the life and death of Peter but appears to have been unaware that Peter had visited Rome or that he had been executed in any way at all.
Peter is a martyr, because he was crucified upside down by the Romans until he died. He was crucified upside down, because he did not consider himself to be worthy to be crucified right side up as Jesus was, so Peter asked to be crucified upside down after he was sentenced to death on the cross.
The tradition that Peter was crucified upside down comes from the early Christian scholar Origen in the early part of the third century. As it is not mentioned or supported by the Bible, the story of Peter being crucified upside down is considered an unverifiable tradition by the Church of Jesus Christ of Latter-day Saints (the "Mormon" church). The Church has made no statement as to how Peter died.
St. Peter was one of Our Lord's twelve apostles and chosen by Him to be the first leader (pope) of his Church. Peter was crucified up-side-down and earned a martyr's crown in doing so. He would have been declared a saint by acclamation of the early Christians and bishops. At the time there was no official process in place for canonization of saints.
There were two robbers, who were crucified along with Jesus, one on each side.
Yes, according to tradition, Saint Andrew was crucified in Greece on an X-shaped cross, which is now known as the Saint Andrew's Cross. He requested to be crucified in this way because he did not consider himself worthy to die in the same manner as Jesus.
right side
Two thieves.
St. Peter was martyred about the year 64 by crucifixion on an up-side-down cross. We do not know the exact date.
Two other robbers where on each side of Jesus when he was being crucified.
He was on Jesus's left, but if you were facing the hill, he was on the right.
No undesirable side effects have been reported.
A road and a garden tomb were nearby. (John 19:41)