Princess Marie Adelaide of Luxembourg
Princess Marie-Adélaïde of Luxembourg (Marie-Adélaïde Louise Thérèse Wilhelmine; 21 May 1924 – 28 February 2007) was a Luxembourgish princess, the third child and the second daughter of Grand Duchess Charlotte (1896–1985) and Prince Felix of Bourbon-Parma (1893–1970).
Johan Peter Koch
Johan Peter Koch (15 January 1870 – 13 January 1928) was a Danish captain and explorer of the Arctic dependencies of Denmark, born at Vestenskov.
Prince Felix of Denmark
Prince Felix of Denmark
(Felix Henrik Valdemar Christian; born 22 July 2002), is the younger son of Prince Joachim and his former wife, Alexandra, Countess of Frederiksborg.
Felix is currently eighth in the line of succession to the Danish throne.
Alexandra, Countess of Frederiksborg
Alexandra, Countess of Frederiksborg, ("née" Alexandra Christina Manley; born 30 June 1964) is the first wife of Prince Joachim of Denmark, the younger son of Margrethe II of Denmark.
She was born in Hong Kong and is of mixed Chinese-European ancestry.
She was introduced to Prince Joachim in 1994.
They married in 1995 and had two sons together, until the marriage was dissolved in 2005.
Princess Caroline-Mathilde of Denmark
Princess Caroline- Mathilde of Denmark( 27 April 1912 – 12 December 1995) was a daughter of Prince Harald of Denmark and granddaughter of King Frederick VIII of Denmark.
As the wife of Knud, Hereditary Prince of Denmark, she became Hereditary Princess of Denmark.
Sara Petersen (badminton)
Sara Runesten Petersen (born 8 May 1975) is a Denmark born female badminton player from New Zealand.
Prince Charles of Luxembourg
Prince Charles of Luxembourg, Prince of Bourbon- Parma and Nassau( Charles Frédéric Louis Guillaume Marie; 7 August 1927 – 26 July 1977), was a younger son of Grand Duchess Charlotte and Prince Felix of Bourbon- Parma.
Minamoto no Chikako
She was the mother of Prince Morinaga.
Helvig of Schleswig
Helvig of Schleswig( also erroneously Hedwig; 1320 – 1374), was a Danish Queen consort, spouse of King Valdemar IV of Denmark.
She was the mother of Queen Margaret I of Denmark, Norway and Sweden.
Sophie of Mecklenburg-Güstrow
Sophie of Mecklenburg-Güstrow (4 September 1557 – 14 October 1631) was Queen of Denmark and Norway by marriage to Frederick II of Denmark.
She was the mother of King Christian IV of Denmark.
She was Regent of Schleswig-Holstein 1590–1594.

Question: What is the place of birth of Prince Felix Of Denmark's mother?
Answer: Hong Kong