Ambassadors have _Excellency_ prefixed to the other titles, and their
accredited rank added.
_Sup_.--To His Excellency Count Karolyi, Ambassador Extraordinary
and Plenipotentiary from H.I.M. (His Imperial Majesty) The Emperor
of Austria.
_Sup_.--To His Excellency The Right Honourable Earl of Dufferin,
K.P., G.C.M.G., K.C.B., Her Britannic Majesty's Ambassador
Extraordinary and Plenipotentiary to the Sublime Ottoman Porte.
_Comm_.--My Lord.
_Con_.--I have the honour to be, My Lord, Your Excellency's Most
humble obedient servant.
The wives of Ambassadors have also Excellency added to their other
titles.
Envoys and Chargés d'Affaires are generally styled Excellency, but
by courtesy only.
Consuls have only their accredited rank added to their names or
titles, if they have any.