Previously, Madrid has been seen as an obstacle to Scotland joining Europe, as it faces its own Catalan separatists' demands.
But, with Britain to leave the EU on March 29th, Foreign Minister Josep Borrell said that if Scotland follows a legal path to leave the UK it could come back.
“Why not, if they leave Britain in accordance with their internal regulations?” Borrell asked, in an interview with the Politico EU news site.
— Kate Day (@kate_day) November 20, 2018
“If Westminster agrees, we are not going to be more papist than the pope.” Both Scotland and Catalonia held independence votes in 2014. The Scottish nationalists were defeated at the ballot box and Spain refused to recognise the symbolic Catalan poll.
But, when Britons voted in June 2016 to leave the EU, a majority in Scotland wanted to remain, reviving talks of another independence bid.
“I am very much (more) worried about the unity of the United Kingdom than the unity of the Kingdom of Spain,” Borrell told Politico in the interview.
“I think the United Kingdom will split apart before Spain,” he added. “It's a clear sign of the UK weakness.”
Spain has its own concerns about Brexit plans, and is this week pushing for a formal declaration it must give the green light to any change in Gibraltar's status.
Madrid lays claim to the British overseas territory and wants Brexit agreements to confirm that it must come to an accord with London on its future.