== 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.