The Guild Hall is available to Bavaria, Flanders, Genoa and Saxony from the 13th Century onwards. In addition to the normal special building functions, this can also be used as a means of short range defense. For a civ, the ability for the guild hall to defend itself and create military units can turn it into a sort of miniature castle.
Saxony researches Chivalric Order instead of Close Order Drill. The Teutonic Order, furthermore, researches Swordsmanship instead of Militia Guilds and receives additional technologies.
Statistics
Century: 13th
Hit Points: 2400
Attack: 11
Armour/Pierce Armour: 2/8
Range: 6
Garrison Capacity: 15 military units (not siege)
Cost: 200 wood, 125 stone
Building Technologies
City Rights, City Councils, Municipal Storehouses (13th, 14th, 15th)
Roman Law, Representation, The Fourth Estate (13th, 14th, 15th)
Bow Practice, Close Order Drill, Militia Guilds, Chivalric Order (15th)
Popular Assembly (15th)
Murder Holes, Treadmill Crane, Fortified Wall, Surgery (14th, Teutonic Order)
Alchemy (15th, Teutonic Order)
Bow Practice, Chivalric Order, Swordsmanship (15th, Teutonic Order)
Building Units
Beguine (13th, Flanders)
Carroccio (13th, Genoa)
Scaerwetter / Witte Caproen (14th/15th, Flanders)
Genoese Arbalester / Genoese Guard (14th/15th Century, Genoa)
Liv Auxiliary (14th, Teutonic Order)
Lett Auxiliary (14th, Teutonic Order)
Handgunner (15th, Genoa, Flanders)