Just to clarify: only Silent_Interim's duke is out. Mine got shuffled back into the deck before I drew a new card, so it could either be in the deck waiting for someone to draw it again or it could even be back in my hand.
Well, it kinda depends. 3 dukes out in the first round isn't that likely (although it's not entirely unlikely either). But if you were sceptical about there being 3 dukes out, then Ramsus' claim is the only one that wasn't substantiated. So if one of us was lying about it, it's him. He just had the advantage of going first, which makes it unlikely for us to challenge him in a new game in the first round - a fact of which I believe he is fully aware. Since it's also unlikely that I drew a duke again, even if there were two in the deck, making sure that Ramsus does not have a duke would go a long way towards making foreign aid a viable option.