Samdech Chauvea Veang Kong Sam Ol, on the royal instructions orgnised a religious ceremony on 9 April 2009 at Preah Thoam Sala in the vicinity of Preah Keao Morokot to pay tribute to the memory of Her Majesty the Queen Preah Sisowath Monivong Kossamak Nearyroth Serey Vaddana. Among the princes and princesses and dignitaries accompanying the King, Samdech Preah Ream Norodom Bupha Devi, senator, Samdech Norodom Sirivudh, High Privy Councillor to His Majesty, Samdech Chauvea Veang Kong Sam Ol, Vice prime minister, H.E. Kuy Sophal, senior minister, H.E.. Chum Ngeurn senior minister and members of the royal family..