In other words, his duchy produced food deficits, and then when he TOed 3-4 regions, he then produced surpluses?
I get that he wasn't buying the food because he was a cheapskate and not before it was unavailable, but I'm assuming here that the lords of his own duchy would be selling more cheaply to him to prevent starvation.
Well, the city didn't have much of a population - barely a thousand or two. So yea, a deficit cause it was a city. But just Candiels fields alone should've fed it - I mean, the first time we took Candiels (when I was it's Duke, back in 2009/10) we never had problems with food, the Fields and Agl more than make up for Candiels at low population levels. Really I enver figured out how that city starved - other than pure mismanagement.
Several Lords from our "inner" regions - Panabuk, Bol, etc were part of the Libero Rebellion group we took in - those Lords should have been more than able to sell him cheap food at a low price before he even took over the Duchy regions. They left on the "Madinan Lords let the city starve" excuse as well, despite having not sold him the food either apparently
And yes - obviously once he rebelled and the regions got food production up the city stopped starving.
I assume they either work one of two ways - sell the food to Candiels, then ship extra back to you guys. Or ship the food to Candiels, and the extra profit is spread out amongst those who need it.