Holy Lance
The name of the soldier who pierced Christ's side with a "lonchē" is not given in the Gospel of John, but in the oldest known references to the legend, the apocryphal Gospel of Nicodemus appended to late manuscripts of the 4th century "Acts of Pilate", the soldier is identified as a centurion and called Longinus (making the spear's Latin name "Lancea Longini").
Gospel of Nicodemus
The Gospel of Nicodemus names several minor New Testament figures who were not named in the canonical texts; for example, the soldier who speared Jesus on the cross is named as Longinus and the two criminals crucified beside Jesus are named as Dimas and Gestas.