| Ruler | Country | Title |
|---|
| Houari Boumédiènne (June 19, 1965 to December 10, 1976) | |
| Baudouin (17 July 1951-31 July 1993) | |
| Walter Scheel (1 July 1974-30 June 1979) | |
| Nicolau dos Reis Lobat (7 December 1975-31 December 1978) | |
| Pál Losonczi (13 April 1967-25 June 1987) | |
| Souphanouvong (2 December 1975-15 August 1991) | |
| Sir Raman Osman (27 December 1972–31 October 1977) | |
| Samora Moisés Machel (25 June 1975-19 October 1986) | |
| | Ruler | Country | Title |
|---|
| Ernesto Geisel (15 March 1974-15 March 1979) | |
| Luis Echeverría (1 December 1970-30 November 1976) | |
| Olav V (September 21, 1957-January 17, 1991) | |
| Sergej Kraigher (May 1974-May 1979) | |
| Joan Martí Alanis (1971–2003) | |
| Ephraim Katzir (24 May 1973-29 May 1978) | |
| Gerald Ford (July 14, 1913-January 20, 1977) | |
|
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