Is Andrés´s second name Juan?
I´m not sure but probably yes, according to Emilio´s ITF profile he has two brothers Juan and Alesandro
hmmmm, could be. I made a little research at the Lapentti profiles. The mother of Nico and his siblings is a cousin of Andrés Gomez, and Nico's second name is Alexander. So Alesandro (and forms of it) seem to have a tradition in that family.
We should ask Nico if we get to see him again.