If the Daly City Theatre resembles the work of Reid Brothers, it might be because C. H. Jensen was that firmâs chief draftsman for several years prior to striking off on his own in 1921.
1 The forms used when referring in the third person are His Highness (to a man) and Her Highness (to a woman).  If the prince or princess is a member of a royal family, the full form is Your Royal Highness; if a member of an imperial family (i.e., the family of an emperor or empress), the form is Your Imperial Highness.
1 Prince - usually, the son or very close relation to an emperor or a king, but can be sovereign ruler in his own right, as in Monaco. In the order of seniority, they are Imperial Highness, Royal Highness, Highness, and Serene Highness. 2  Duke - the head of a duchy; in the UK, dukes are the most senior nobles.  Earl.