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").
Misericorde (weapon)
A misericorde ( or ) (from French word "miséricorde", "mercy") was a long, narrow knife, used from the High Middle Ages to deliver the death stroke (the mercy stroke, hence the name of the blade, derived from the Latin "misericordia", "act of mercy") to a seriously wounded knight. The blade was thin enough to strike through the gaps between armour plates.