"Your Excellency" is used when you are addressing the person, like speaking or writing to them. "His Excellency" would be when you are talking to someone else about the person.
Dear Excellency as a greeting in writing, Your Excellency when speaking TO him, and His Excellency when writing or speaking OF him.
Your Excellency: When written at the beginning, it's Dear[ no His OR Your ] Excellency. In the body of the letter , it's Your Excellency.
The Adjutant of His Excellency was created in 1969.
His Excellency - opera - was created in 1894.
The duration of The Adjutant of His Excellency is 6.28 hours.
The duration of His Excellency - film - is 1.37 hours.
His Excellency - film - was created in 1952-01.
His Excellency - 1914 was released on: USA: 27 January 1914
"Your excellency" "His/her excellency" "Mr./Madam President" depending on the circumstances etc
Shahid
His/Her Excellency
Her Excellency the Right Honourable Michaëlle Jean has a husband, His Excellency Mr. Jean-Daniel Lafond.