A processional cross is a crucifix or cross which is carried in Christian processions. Such crosses have a long history: the Gregorian mission of Saint Augustine of Canterbury to England carried one before them "like a standard", according to Bede. Other sources suggest that all churches were expected to possess one. They became detachable from their staffs, so that the earliest altar crosses were processional crosses placed on a stand at the end of the procession. In large churches the "crux gemmata", or richly jewelled cross in precious metal, was the preferred style. Notable early examples include the Cross of Justin II (possibly a hanging votive cross originally), Cross of Lothair, and Cross of Cong.
In the Eastern Orthodox Church, there are different traditions surrounding the use of the processional cross. Traditional practice, still followed among churches of the Russian or other Slavic traditions, is that the use of the processional cross during the normal cycle of divine services is a primatial privilege, and will only be done when the Patriarch or First Hierarch is serving. In the modern Greek tradition, the processional Cross is often carried during the Entrance at Vespers, and during the Lesser and Great Entrances at the Divine Liturgy, regardless of whether the celebrant is a primate.