Who were the Knights Hospitaller?

With St. John the Baptist as their figurehead, the Knights Hospitaller developed into a powerful religious-militaristic group during the Crusades, with a legacy spanning to the present day.

Who were the Knights Hospitaller?
With St. John the Baptist as their figurehead, the Knights Hospitaller developed into a powerful religious-militaristic group during the Crusades, with a legacy spanning to the present day.