When referring to a specific person (i.e- His Highness Prince Philip, or Her Highness Queen Elizabeth) the first letter of the word ("H") is capitallized.
"Uppercase" refers to capital letters in the alphabet, such as A, B, C, and so on. These letters are typically used at the beginning of sentences, for proper nouns, or to emphasize certain words. In contrast, "lowercase" letters are the smaller versions, like a, b, c. The distinction between uppercase and lowercase is important in writing and typography.
P
Her Royal Highness or His Royal Highness.
Highness is a lower rank of a Royal Highnessbecause a Highness may be a distant relative of the monarch whereas the a Royal Highness may be a sister, brother, son, daughter etc.
The duration of Your Highness is 1.7 hours.
That is the correct spelling of the royal title "Your Highness."
The plural of (royal) highness is (royal) highnesses.
Your Highness was created on 2011-04-08.
Your Highness was released on 04/08/2011.
The Production Budget for Your Highness was $50,000,000.
Your Royal Highness or Imperial Highness It depends on the country and rank of the Princess because some princesses have the style "Highness" insetad of Royal or Imperial Highness.
No, either Her/Your Royal Highness.