 He has spent most of his life outside Cambodia.As a child Sihamoni was sent to Prague, in then Czechoslovakia, by his father in 1962.During the 1970 coup d'état by Lon Nol, Sihamoni remained in Czechoslovakia, where he attended all three levels of education - elementary school, high school and AMU - Academy of Performing Arts in Prague, and studied classical dance and music almost continuously until 1975, when he graduated.