As everything is possible, I go for Alfred as the call name, which goes well with Alexander (if that is a criteria) and is not expected by anyone ...
But I guess Wilhelm/William would be more likely. Night to Sunday I dreamt the following names:
Michaz Bamse Ugle
(Michaz is not a name, so I wonder where that came from. Bamse, as in "Teddy bear", and of course the Norwegian form of "Owl". What a nightmare!)