Name of Tuol Svay Prey High Tuol Svay Prey is definitely not the name of a royal ancestor of HM King Norodom Sihamoni or his old man for that matter It might be the name of suburb in Phnom Penh but that just marks a locality and not even the one where Tuol Sleng is that s in Buoeng Keng Kang 3 HM the King s antecedant was Phonea Yat and the school s name was Phonea Yat Lycee