Knights Hospitaller
The Order of Knights of the Hospital of Saint John of Jerusalem (; ), also known as the Order of Saint John, Order of Hospitallers, Knights Hospitaller, Knights Hospitalier or Hospitallers, was a medieval and early modern Catholic military order. It was headquartered in the Kingdom of Jerusalem, on the island of Rhodes, in Malta and St Petersburg.
Knights Templar
The order, which was among the wealthiest and most powerful, became a favoured charity throughout Christendom and grew rapidly in membership and power. They were prominent in Christian finance. Templar knights, in their distinctive white mantles with a red cross, were among the most skilled fighting units of the Crusades. Non-combatant members of the order, who formed as much as 90% of the order's members, managed a large economic infrastructure throughout Christendom, developing innovative financial techniques that were an early form of banking, building its own network of nearly 1,000 commanderies and fortifications across Europe and the Holy Land, and arguably forming the world's first multinational corporation.