28 May 1831. The Minister of Foreign Affairs of the Kingdom of Sweden and Norway, Gustaf af Wetterstedt, notifies Governor of Greece Ioannis Kapodistrias of the decision of the King of Sweden and Norway to appoint a Consul General in Greece, namely army officer Carl Peter von Heidenstam, in order to “establish initial bonds between the two nations, through which they will learn to know and value each other”. The letter, which the Governor never received as it arrived in Nafplio after his assassination, constitutes recognition of the Greek Independence, thus making the Kingdom of Sweden and Norway one of the first countries (apart from the Great Powers) that recognized the new State.
31 October / 12 November 1831. The Administrative Committee that took over after the assassination of Governor Ioannis Kapodistrias responds to the letter of the Minister of Foreign Affairs of the Kingdom of Sweden and Norway, G. af Wetterstedt, regarding the nomination of the first Consul General of the country in Greece, stating that, despite the great mourning, the Greek Government will extend him a “sincere welcome”. Heidenstam finally remained in Greece (since 1833 as Chargé d’ Affaires) for 47 years, until his demise in 1878. His family tomb is still located in the First Cemetery of Athens.
[23 July] 4 August 1832. Consul General of the Kingdom of Sweden and Norway in Greece Carl Peter von Heidenstam requests the recognition of three Vice-Consuls of the country: in Pylos (Navarino), Naxos (and nearby islands), Tinos and Andros.
[24 January] 5 February 1833. Minister of Foreign Affairs of the Kingdom of Sweden and Norway Gustaf af Wetterstedt announces to the Regency the appointment of Carl Peter von Heidenstam (until then Consul General) as Chargé d’Affaires of the Kingdom of Sweden and Norway in Greece.
16/28 February 1834. Copy of a letter of Greek Minister of Foreign Affairs Alexandros Mavrokordatos to Minister of Foreign Affairs of the Kingdom of Sweden and Norway Gustaf af Wetterstedt announcing that Ambassador of Greece to St Petersburg Michael Soutzos was instructed to travel to Stockholm to convey a message expressing gratitude to the King of Sweden and Norway on behalf of King Othon. Soutzos finally went to Stockholm in July 1835.
5 July 1835. The address of Ambassador of Greece in St. Petersburg Michael Soutzοs during his visit to the King of Sweden and Norway, on a mission instructed by King Othon aiming to “establish the closest intimacy between the two Courts and the two States”.