While the First Crown prince of Jurai, the First and Second Crown princesses, and the First Crown prince's successor are present at the Masaki residence, their ‘friends’ also reside there and are considered to be family as well.
1.1(in some countries) a female heir to a throne.
Definition of crown princess in US English:
crown princess
noun
1The wife of a crown prince.
Example sentencesExamples
While the First Crown prince of Jurai, the First and Second Crown princesses, and the First Crown prince's successor are present at the Masaki residence, their ‘friends’ also reside there and are considered to be family as well.