Holy Lance
A Holy Lance is conserved in Vagharshapat (previously known as Echmiadzin), the religious capital of Armenia. It was previously held in the monastery of Geghard. The first source that mentions it is a text "Holy Relics of Our Lord Jesus Christ", in a thirteenth-century Armenian manuscript. According to this text, the spear which pierced Jesus was to have been brought to Armenia by the Apostle Thaddeus. The manuscript does not specify precisely where it was kept, but the Holy Lance gives a description that exactly matches the lance, the monastery gate, since the thirteenth century precisely, the name of Geghardavank (Monastery of the Holy Lance).
Fisher King
The more recent writings have the lance presented in the Fisher King's castle with Christian theology. More specifically, it is supposed to be the lance that pierced Jesus Christ while on the cross. This is seen in Malory's "Le Morte d'Arthur". In Malory's version the Fisher King is healed with the blood from the lance, signifying it as a good, holy, Christian object. In "Corbenic" we see the precession at the Fisher King's feast, featuring heavily on the Holy Grail, which is a strong Christian artifact. It can be extrapolated that in the same precession, the accompanying lance is the lance that pierced Jesus Christ.