Madam Secretary was created in 2003.
Bjorn Lyrvall is the Ambassador to the US for Sweden.
Francois Delattre is the Ambassador to the US for France.
Maria Cecilia Nahon is the Ambassador to the US for Argentina.
Ritva Inkeri Koukku-Ronde is the Ambassador to the US for Finland.
Best I can do on this one: Since the person is not officially an ambassador yet, you would address the letter as follows: Dr. John Smith Ambassador Designate to Oklahoma <<at his present address>> In the greeting of the letter, refer to him by his present title: Dear Dr. Smith, etc. In the opening of the letter, it is always proper to congradulate him on his appointment. After his becomes official, then you would address the letter to: Honorable Ambassador John Smith Embassy of the United States 123 Any Street Omro, Oklahoma 12345 and in that greeting: Dear Honorable Ambassador Smith...
Ambassador
Their husband/wife. If an ambassador is married,his/her wife/husband will not become an ambassador.
An ex-ambassador is often referred to as a former ambassador or a retired ambassador.
I believe you are thinking of an ambassador.
madam
You would put The Ambassador of ...then what country he represents. When talking to an Ambassador , he/she are Ambassador
마담 = madam
Madam
The full title of an ambassador is "Ambassador Extraordinary and Plenipotentiary."
If the Ambassador is currently active in the Diplomatic Service, it would be Mr. Ambassador or Madame [ Mme.] Ambassador.
Call Me Madam was created in 1950.