Advance
Scourge of the Corsairs
The famed Turkish privateer Hayreddin Barbarossa fought many legendary encounters against the Knights, but he was hardly the only corsair we have encountered. Turkish raiding and looting of all of Southern Europe, tolerated by the Barbary states and funded by the Turks, must end. The Knights will do their job protecting innocent sailors at any cost.
Knights HospitallerCountrypotentialAdvance tree
The game files don’t say where this goes: it has no requires, so the game places it in the 
Discovery tree itself.
