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").
Stephaton
The soldier who offered Jesus the sponge is often paired with Longinus, the name later given to the unnamed soldier who pierced Christ's side with a spear during the Crucifixion. It is not known when or how the name "Stephaton" originated for this character, though it had become common well before the end of the first millennium.