José de San Martín was a monarchist. It's unlikely a Bourbon will accept the throne of a new Argentine state - but what other European houses might? Obviously this didn't occur in OTL but if it had, who would be the most likely European family to take on an Argentine crown?
What would be the effect of this on Argentine history? What kind of relations would a constitutional monarchy Argentina have with its neighbours?
What would be the effect of this on Argentine history? What kind of relations would a constitutional monarchy Argentina have with its neighbours?