Her Royal Highness, Alexandra Christina, Princess of Denmark, was born in Hong Kong on 30 June 1964. She is the daughter of Richard Nigel Manley (born in Shanghai in 1924) and Christa Maria Manley (born Nowotny, Austria in 1933).

Alexandra Manley was christened at the Cathedral of Saint John, Hong Kong. The princess, who originally belonged to the Anglican Church, received instruction in the Evangelical Lutheran Faith and was confirmed prior to her wedding in 1995.

On 18 November 1995, His Royal Highness Prince Joachim of Denmark married Miss Alexandra Christina Manley, who in connection with the marriage became Her Royal Highness Princess Alexandra of Denmark. The wedding ceremony was conducted by Queen Margrethe II of Denmark's Chaplain-in-Ordinary and took place in the Chapel of Frederiksborg Castle at Hillerød. The wedding festivities were held at Fredensborg Palace. Before she wed Prince Joachim, however, she had to renounce her British Citizenship, change her religion, and give up her career as an investor.

Princess Alexandra quickly became popular with the Danish people. Know for her dress style and charity work, she was dubbed the Diana of the north. She learned Danish, known to be a hard language for English speakers, quickly and within a few years she spoke it without an accent; further enduing her to the Danes.

With Prince Joachim, Princess Alexandra has two children: His Highness Prince Nikolai William Alexander Frederik, born on 28 August 1999; and His Highness Prince Felix Henrik Valdemar Christian, born on 22 July 2002.

By the summer of 2004, rumours were circulating throughout Denmark and neighbouring Sweden and Norway that her marriage to Prince Joachim had gone sour. The rumours proved to be true and in September of 2004, Princess Alexandra and Prince Joachim announced their separation and eventual intention to divorce. She will remain Her Royal Highness the Princess Alexandra and after the divorce as Her Highness Princess Alexandra.