[This content is out of date and no longer canon (Florian is now Augustine/Lysandre’s bio son)]
Brothers~
Florian (left) is the son of Lysandre and Malva, but he ends up adopted by Professor Sycamore. Basile (right) is the son of Lysandre and Bryony and is about 3 months older than Flor. He was raised by his mom for his early childhood, but she got arrested when he was a kid, leaving him to fend for himself on the streets until he’s taken in and later adopted by Clemont and Cilan when he’s 15. While they don’t initially know they’re brothers, the similarities are hard to deny and once they meet, it doesn’t take long for them to figure out they’re related. They get along really well, Baz often referring to Flor as his ‘twin’ since they’re so close in age.
Pokémon Legends & Legacies 