But how did this connection come about between what became a modern superclub with a global fanbase and North Lanarkshire and the Victorian textile mills of Ayrshire and Renfrewshire?

Barcelona historians Manel Tomas and Mike Roberts explain to BBC Scotland how the early years of the club have a distinctly Scottish flavour.

Why Barcelona?

Born in Dalziel, just outside Motherwell, in 1878 to parents from Ayrshire, Girvan's journey to Spain begins in the textile mills of Johnston Shields & Co in Newmilns.

The mills were booming, but there was a problem. The Factory Act 1891 had limited the hours that children could work and prohibited women from working within four weeks of giving birth.

Armed with patents for their design and manufacture of lace fabrics, and recognising Barcelona's growing importance as a European shipping hub and less restrictive labour laws, Johnston & Shields opened a factory in Sant Marti I Provencales, then just north of the city. The company sent Scottish workers, including Girvan, out to Catalunya to teach the locals how to produce their products.

Girvan began playing football for factory side FC Escoces - "the Scottish Team" - who also imported the combination football pioneered in Glasgow by Queen's Park.

Barcelona, in the meantime, had been founded in 1899 by Hans Gamper, a Swiss businessman who had previously founded, and played for, FC Zurich. It was, says Tomas, "a club of mainly foreign wealthy gentlemen players".

Their city rivals, the long since folded Catala, had a strict no-foreigners policy and their team was made up of entirely local merchants. The Athletic Bilbao of their day.

The Scottish controversy

Barcelona missed out on lifting the inaugural Copa Macaya

Realising they had to relax their policy to remain competitive, Catala turned up for a February 1900 "friendly" against Barcelona having poached no less than six Scots from the Escoces team, including Girvan.

However, Barca were livid that they had not been told beforehand of Catala's change in transfer policy and, in an ill-tempered encounter, the Scots' new team finished with eight players and a bruising 4-0 defeat.

Girvan's team-mate and fellow countryman Willie Gold landed a haymaker on the jaw of Barcelona's English gent, Stan Harris, earning a straight red.

Roberts explains that Barcelona were "morally outraged" and even took out a press advertisement confirming they would "not play any matches against the Scottish".

The author of "Football in Barcelona: 1892-1902" suggests that there was more than a hint of class snobbery and hypocrisy given Barcelona's own team was already multi-national.

"Barcelona's players were gentlemen amateurs, the Scots were a different breed of player altogether, they were manual labourers from the mills," he says.

The dilemma was that Girvan - who "could play in every position, defender one week, left winger the next, a great all-rounder by the standards in Barcelona at the time" - and his fellow Scots were the best players in the city.

Copa Macaya and the U-Turn

And, with that, we return to the inaugural 1900-01 Copa Macaya. It was the first football tournament in Spain, organised by a businessman and football enthusiast, Alfonso Macaya.

"It was a tournament Barca were expected to walk," Roberts suggests.

Barca shocked everyone by surreptitiously lifting their ban on Scots and fielding a team featuring three of them, with Girvan as striker.

Not only that, they made the Scots they had previously shunned into honorary members of the club.

The match itself ended in a 2-1 win for Hispania, who themselves fielded six Scots, but their opponents' newly signed attacker from Motherwell netted the opening goal and, with it, secured a place in the annals and a mention in the FC Barcelona Museum to this day.

"He's a legendary figure in the history of the club," Roberts adds. "Messi may be Barca's record goalscorer, but Girvan got their first."

While an alleged unpaid bar bill at the city's Hotel Casanovas led to Barcelona's Scottish contingent being stripped of their membership, Tomas is convinced of their legacy.

"The Scots were part of a community which Barca, ultimately, grew out of," he suggests.

Girvan, having long since returned to Scotland and become Provost of Newmilns and chair of the lacemakers union, was a guest of honour in an international between Scotland and Spain at Hampden Park in 1957 - 11 years before his death.

His fondest memory, the story goes, was not having scored Barca's first competitive goal but having taught the locals how to foul.