Which saint was crucified upside down according to tradition?

Which saint was crucified upside down according to tradition? Saint Peter.

According to Christian tradition, Saint Peter was crucified upside down in Rome during the persecution of Christians under Emperor Nero. The story says that Peter requested this position because he considered himself unworthy to die in the same manner as Jesus.

The account does not come from the New Testament. It is associated with the apocryphal Acts of Peter, a late-2nd-century Christian text, and was later popularized by writers such as Origen. Jerome, writing in the late 4th century, gave the humility-based explanation for Peter’s inverted crucifixion.

The tradition is represented by the Cross of Saint Peter, an inverted Latin cross used in Christian art and heraldry. It should not be confused with Saint Andrew’s cross, which is X-shaped and traditionally linked to Andrew’s martyrdom. Peter’s historical death by crucifixion is an early Christian tradition, but the upside-down detail remains a later hagiographical account rather than a canonical biblical statement.