So I was quibbling about manpower and didn't notice that these are funny numbers. How do you get 44 months out of the period 1220-1251? Call it thirty years, and it should be 360 months. 360*60=21600. Then Dyrrachion comes in addition.You lost Constantinople somewhere between 1220 and 1224, it constituted 54g of your monthly 234g. Assuming you lost it first thing in 1220, our last save is oct 24 1251 and lets say Constantinople got you an even 60/month thats 60gx44months=2640g. Plus that 4prov duchy around Epirus, combined worth about half of Byz so +1320g=3960g. So a net loss so far of about 4000gold, liberally counted.