While the Vienna Convention of Diplomatic Relations, 1961, established three primary positions: the embassador, the plenipotentiary minister and the head of mission (HOM), every country tends to organise the positions in their network of consulates and embassies in their own way, with variations in both the number of positions and their official titles.
In Spain, for example, there are 5 primary positions in the hierarchy, ranked below according to their seniority. However, something in common for all ambassadors working in Spain, is the statement they need to make before the King during the Ceremony of the Presentation of the Letters of Credence: “Your majesty, I have the honour of presenting to you the Letters of Credence which certify me as Ambassador Extraordinary and Plenipotentiary of “Sending state” to “Receiving state”.
|EL MINISTRO PLENIPOTENCIARIO||MINISTER|
|EL CONSEJERO DE EMBAJADA||COUNSELOR|
|EL SECRETARIO DE EMBAJADA||EMBASSY SECRETARY|
|EL FUNCIONARIO EN PRÁCTICAS||TRAINEE DIPLOMAT|