Development of the crusader castles4 -- Castle builders of the Teutonic Order -- Castles and frontiers -- Prussian crusade -- Fortress line expands -- First Prussian revolt -- Second Prussian revolt -- New castles and new enemies -- Design features of the crusader castles 17 -- First wooden fortresses -- Design of the brick castles -- Construction and decoration of the castles -- Crusader castle as a defensive system 23 -- Control by castles -- Brick walls and crossbows -- Catapults and cannon -- Typical crusader castles of Prussia 26 -- Castle of the Amber Master -- Marienburg the great -- Other representative crusader castles -- Castle and the town -- Castles and cathedrals -- Influence of the red-brick castles -- Living site 40 -- Castle garrison -- Castle as economic centre -- Castle as monastery -- Communal life in the castle -- Crime and punishment -- Castle as hospital -- Daily life in the castle in wartime -- Operational history 49 -- Siege warfare and the timber castles -- Siege warfare and the brick castles -- Later sieges -- Fall of Marienburg -- Aftermath 58 -- Crusader castles today 59.