​Katsaris was born in Marseilles, France. Katsaris first began to play the piano when he was four, in Cameroon where he grew up. His first teacher was Marie-Gabrielle Louwerse. He studied piano at the Paris Conservatoire with Aline van Barentzen and Monique de la Bruchollerie, who had been a pupil of Emil von Sauer – one of Franz Liszt's favourite ...