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As says on the tin.
I'm not looking for a Fatamid restoration or anything, just musing on how the Levant would look if the Ayyubids failed to (re)establish control in Egypt and were nothing more than a disunited collection of princedoms (emirates?) in Syria.
Is this even feasible? I don't really know who would have been able to attempt to take over - the overwhelming majority of what I know on the Third Crusade era is from the Western side.