In 2011, Buffon married Czech beauty pageant winner Alena Seredova, and Louis chose to represent his mother's country over his father's. According to former Czech Republic international Erich Brabec, who now serves as the technical director of the Czech Republic youth teams, a chat he had with Seredova turned out to be a decisive factor.
"I don't know Gianluigi Buffon's opinion, but after finding out that he was on our list of those called up, they contacted him from Italy," Brabec revealed earlier this month (h/t La Stampa). "Personally, I just organised everything necessary with his mother so that he could show up at the training camp with the team."
Although Buffon and Seredova separated in 2014, Louis holds dual citizenship and could yet feature for the Italian national team at the senior level in the future.