Royal audience granted by His Majesty King Norodom Sihamoni of Cambodia and Her Majesty the Queen Mother Norodom Monineath Sihanouk to His Highness Prince Sisowath Ravivaddhana Monipong and Marquis Vincenzo Grisostomi Travaglini on Saturday 26th May 2018 at Khemarin Palace in Phnom Penh.