Also, if we're talking summits that never happened, I have to admit to having a soft spot for Irrational Fanboy Peter, and problematic Catherine always appealed to me even more than MT, and wouldn't *that* make good crackfic? :P

ETA: cahn, just to clarify, Catherine and Fritz did meet once (she was 14, he was 32), and they sat next to each other at dinner and talked about the arts, and she appears to have impressed him and he to have charmed her, but that's before all the shenanigans that would make a summit including Peter III so much "fun".