Building and Training priorities.

[dgfred]

The game designers assigned an identifying number to each province on the map. Those numbers run left-to-right then top-to-bottom. When you queue more items (buildings or troops) than you can afford to build in a year, the provinces get their construction allocated by the I.D. number.

So, northwest provinces get higher priority over southeast ones, explaining your poor Spanish and Italian results.

Thanks Geezer for the great tidbit I've been wondering why Switz
and Tyrolia sometimes miss their builds in my HRE campaigns .