[tecleandor]

That'd be for the Basque Country region, the region of origin for Jai Alai.

There, the equivalent for Francisco is Frantzisko, although I think is way less commonly used. I almost always hear Patxi, even in formal settings. For example, a former President of the Basque Government (the Lehendakari), and also former President of the Spanish Congress of Deputies, always goes by "Patxi" (Patxi Lopez).

Also, like in the Patxi Lopez case, you might be born or living in the Basque Country and named Francisco, but go by Patxi.

Going by Patxi when you're named François it's because the Basque Country region also overlaps with France.

[tough]

I was going to say it sounded very basque to me.

[brickers]

Thank you