I have some half-free time in the following weeks, so I might search some books for you. If I do (no promises), I will get back to you, but it will all be Roman Empire related.
I discovered it a few days ago. The EU subsidies games made by European studios (Paradox is from Sweden, if I am not mistaken), that have a serious nature (no racing cars or something like that) and that deal with European culture or history, preferably made by studios that have already published something. One of the Paradox's future projects (I forgot its name) just received (some months or a year ago) the said EU support, with 13% of its budget being paid by the EU (which results in something a bit above 100.000 euros paid by the EU).
That is, indeed, the difference that would disqualify Cataphrak of a similar grant by Canada.