The Knights Hospitaller
Helen Nicholson
Read it in used paperback at a meager 180 pages including plates, further reading, and bibliography.
This is a short book looking to generally cover the Knights Hospitaller, a religious order established after the Kingdom in The Levant who were charged with providing care for the sick and haggard pilgrims that made their way to the Holy Land after the First Crusade. As the Kingdom of Levant develops, the knightly orders including the Hospitaller, take a more active role in it's military endeavors and become holders of great real-estate, castles, etc. giving them influence in the politics of the region. When Jerusalem is re-taken and Christian's expunged the Knights Hospitaller become a bit rudderless. A situation made worse by the destruction of their brother Order, The Templars, and eventually untenable as an organization as the flow of pilgrims dried up. They were moved, restructured, given a new purpose, but still could not find the success and affluence they once had. For times were-a'-changing.
Despite the change in winds, the Knights Hospitaller still exist today, as an arm of the Papacy, still doing charitable work for those less fortunate.
The author intended for this to be a small easy thing to navigate, she was successful in that. I read this primarily for the information prior to the fall of The Levant to Muslim forces. Their tragic last stands, their infighting, and their colorful grand masters are all great reading. Nicholson provides an amazing further reading section, a list of Grand Masters (to current), art plates, etc.