Transcript for Prince William Remembers Princess Diana in Emotional Speech
Well now to prince William touching hearts around the globe with moving words honoring his late mother. ABC's lama Hasan has more now from London. Reporter: A very private prince publicly opening up. My mother was determined to help those in need and she would have been immensely proud as I am. Reporter: And speaking from the heart at a charity dinner about his late mother, princess Diana's death. What my mother recognized back then and what I understand now is that grief is the most painful experience that any child or parent can endure. Reporter: 21 years ago the people's princess helping to launch the charity which supports those who have lost loved ones. 15 years later I was honored to be invited to become patron of child bereavement in UK to continue my mother's commitment to a charity which is very dear to me. Reporter: Prince William make a proving tribute revealing how her charity work shaped his own public duties. As a father to two young children myself I appreciate it all the more. Reporter: As for his two children, William recently gushing over them reportedly describing George as lively and Charlotte as very ladylike but, of course, the both are delightful and we couldn't agree with you more, William. For "Good morning America," lama Hasan, ABC news, London.
This transcript has been automatically generated and may not be 100% accurate.