Royalty Princess Diana was born on 1st July 1961 AD. A British citizen, Princess Diana was born in United Kingdom. He was also called Diana, Princess of Wales. Diana, Princess of Wales was 36 years old when he died on 31st August 1997 AD. In his life Diana, Princess of Wales was famous not only for his work but also for quotations and sayings, some of which are quite popular and listed here.