As a London club you can be assured that they would have a mainly protestant local support, though Arsenal's fan base stretches much further than London and would probably contain fans of all religions and beliefs. Religion at Arsenal isn't important though; there are no religious rivalries if all the other clubs in your region are born from the same religious support.
mixed
Yes he was born a Protestant and that is why there is much controversy over his managerial position at Celtic (A typically Catholic club)
She was a Protestant
James I of England was Protestant not Catholic.
The name can be either Protestant or Catholic.
Protestant
The twitter handle of Arsenal Football Club is @Arsenal.
Arsenal Football Club Museum was created in 1993.
No
Protestant.
Protestant
Protestant.