Other female members of the Royal Family who hold the title of Her Royal Highness: Your Royal Highness on the first occasion and then Ma’am.
Aelodau gwrywaidd o'r Teulu Brenhinol sy'n dal y teitl Ei Uchelder Brenhinol: Eich Uchelder Brenhinol ar yr achlysur cyntaf a Syr wedi hynny.