The first Crusade began in 1096. Warriors responded to Pope Urban II’s request for assistance against the Muslim Turks who were attacking Christian settlements and caravans across the holy land.
Per Wikipedia “When a crusader swore a vow (votus) to reach Jerusalem, they received a cloth cross (crux) to be sewn on their clothing. This “taking of the cross” became associated with the entire journey, and crusaders saw themselves as undertaking an iter (journey) or peregrinatio (armed pilgrimage).
These grips honor them with a Paduak cross and backing with on a field of Ebony.