Notes about this Castle and Saladin:
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This is a very large castle, and, as such, can take a great deal of room for Saladin to finish. The many round towers also ensure a heavy amount of stone will be needed for Saladin to finish construction.
The complicated moat design takes a long time to complete, but the castle should hold its own
well enough without it. If the moat areas that block in the "good things" (statues, shrines, etc.) is completed, Saladin's workforce will be a bit more productive as they won't be able to wander around the nice areas and take breaks.
This castle has a many buildings, and for it to be the most effective, Saladin should have
plentiful access to Iron, Stone, and farm land to the sides and behind his castle.