He passed studentexamen in 1944 and received a Candidate of Law degree in 1949 before becoming an attaché at the Ministry for Foreign Affairs the same year.
[1] He was acting head of the disarmament delegation in Geneva in 1967 and held the position of ambassador from 1970.
[5] Edelstam was a frequent skier and had a great interest in cultural issues, foreign policy, history, and literature.
[5] Edelstam died on 17 August 2012 in Stora Tuna, Borlänge Municipality, Sweden.
[6] He was interred on 3 September 2012 in the family grave in Brännkyrka cemetery in southern Stockholm.