User blog comment:Saturn120/Scotland Referendum - Aye or Nay?/@comment-8615800-20140917083727/@comment-4612798-20140917124947

Indeed, Westminster actually negotiated with Edinburgh about the referendum. Catalonia is just going to have one 'illegally'. There's also something in the Spanish constitution about giving it the right to invade Catalonia if it wants to. Fun fact for the day.

And its one of the reasons why Spain has been so negative about an independent Scotland's chances concerning the EU.