Chau Sen Cocsal spent an additional two years under house arrest in Saigon.
Chau Sen Cocsal Chhum was publicly cremated with full military guard and honour.
Son Sann and Chau Sen Cocsal Chhum, also appointees of the monarch, did not attend the session.
In 1955, Chau Sen Cocsal was elected to the Cambodian National Assembly as deputy of Kompong Cham Province.
In 1993, Chau Sen Cocsal Chhum was awarded the highest rank in Cambodia's civil service, " Samdech ".
He said the king's two other appointees _ veteran politicians Son Sann and Chau Sen Cocsal Chhum _ were unlikely to attend the meeting.
Other prominent members included Chau Sen Cocsal Chhum, who acted as an adviser to Tioulong and Nol in founding the party, and Chuop Hell.
Having died at age of, he is the third longest lived national head of government or head of state in history, behind only Chau Sen Cocsal Chhum and Cel鈒 Bayar.
In 1991, following the signature of the Paris Peace Agreements, King Norodom Sihanouk nominated Chau Sen Cocsal Chhum as President of Cambodia's Supreme National Council ( SNC ).
He is considered to be the longest-lived former head of state and was the longest-lived state leader until 16 December 2008 ( when he was surpassed by Chau Sen Cocsal Chhum ).