I am not sure if it is the play to claim SE as your country of origin. It really is about the read - is he scum? He could be. If I had to bet right now, I'd say he is scum. If he flips scum, good. If he flips as Alexander of Town from Southern Europe, that's some unnecessary heat on us.
I get the feeling that Blarg's death can be achieved without you mentioning it and I also think that mentioning it can backfire. It is hard to say. Perhaps I underestimate how odd it is that three people would share a territory of origin. Perhaps I overestimate the heat that we'd get in the worst case scenario. After all, why would you or I fake such a minuscule detail? There is no purpose in that. And three people sharing a territory of origin is something that should in reality be judged by all town, not just us.
But. Territory of origin will lead to name claims. That is a biiiiiig no. That's too much information. Two emperors, sharing a province, being all friendly to each other and reading each other as town, I wonder what that could be. Silence is golden here I think.