This is all pretty amazing. First of all, I didn't even know there WAS a roll of recipients of the Griffin Order. Still, I can't explain the absence of the Spanish order from this bar, so it may be too soon to conclude that this is our man. On the other hand, there may not be any better candidates.
The original story on the group was that it was "taken from the uniform of a Lieutenant General when he was captured in 1945," but that story is barely plausible. There is a General's shoulder board that came with the group (just one) but as I said there is also an 1870 EK2 medal bar, so obviously the story is just a story. It's possible the shoulder board was taken from the uniform of such a person, but the rest of it may have come from other sources, which I why I didn't give the Italian Order of the Crown much thought when I first posted this.
The only other thing in the group that may (or may not) have any bearing is a Johanniter Order, Ehrenritter. There is no particular reason to believe that the Johanniter belonged to this officer, or for that matter to the owner of the EK2 bar.