_.The Prince Philip, Duke of Edinburgh, was the youngest of the five children of HRH Prince Andrew of Greece and Denmark, GCVO [1882-1944], and his wife HSH Princess Alice of Battenberg [1885-1969].
The Duke of Edinburgh died at Windsor Castle, 9 April, 2021, where his own mother had been born, 25 February, 1885.
Philip's four elder siblings were sisters.
 Princess Margarita of Greece and Denmark, was born at Athens, 18 April, 1905. She married at Langenburg, 20 April, 1931, Gottfried, Furst zu Hohenlohe-Langenburg [1897-1960]. Princess Margarita died at Bad Wiessee, 24 April, 1981, having had issue:-
[1a] Prince Kraft Alexander Ernst Ludwig Georg Emich Furst zu Hohenlohe-Langenburg (1935-2004).
[1b] Princess Beatrix Alice Marie Melita Margarete zu Hohenlohe-Langenburg (1936-97)
[1c] Prince Georg Andreas Heinrich zu Hohenlohe-Langenburg (born 1938)
[1d] Prince Ruprecht Sigismund Philipp Ernst zu Hohenlohe-Langenburg (1944-78)
[1e] Prince Albrecht Wolfgang Christoph zu Hohenlohe-Langenburg (1944-92)
 Princess Theodora of Greece and Denmark, who was born at Athens, 30 May, 1906. She married at Baden-Baden 17 August, 1931, Berthold, Margrave of Baden [1906-63]. Princess Theodora died at Konstanz, 16 October, 1969, and had issue:-
[2a] Princess Margarita Alice Thyra Viktoria Marie Louise Scholastica of Baden [1932-2013]. She married Prince Tomislav of Yugoslavia.
[2b] Maximilian Andreas Friedrich Gustav Ernst August Bernhard, Margrave of Baden, Herzog von Zähringen [born 1933]. He is the eldest living nephew of Prince Philip.
[2c] Prince Ludwig Wilhelm Georg Ernst Christoph of Baden [born 1937].
 Princess Cecile of Greece and Denmark, was born at Tatoi, 22 June, 1911. She married at Darmstadt [civil] 23 January, 1931, [religious] 2 February, 1931, Georg Donatus, Grand Duke of Hesse and By Rhine [1906-1937]. Princess Cecile was killed, with her husband and family, in an air accident at Steene, Ostend, 16 November, 1937, and had issue:-
[3a] Prince Ludwig Ernst Andreas of Hesse and By Rhine [1931-37]
[3b] Prince Alexander Georg Karl Heinrich of Hesse and By Rhine [1933-37]
[3c] Princess Johanna Marina Eleonore of Hesse and By Rhine [1936-39]
 Princess Sophie of Greece and Denmark, born at Corfu, 26 June, 1914. She married firstly, at Kronberg, Taunus, 15 December, 1930, Prince Christopher of Hesse [1901-1943]. Her first husband was killed in action in the Apennines. She married secondly, at Salem [civil] 23 April, 1946 [religious] 24 April, 1946, Prince Georg Wilhelm of Hanover, Duke of Brunswick--Lüneburg [1915-2006]. Princess Sophie died at Neuhaus bei Schliersee, 24 November, 2001, and had issue by both husbands:-
[4a] Princess Christina Margarethe of Hesse [1933-2011]
[4b] Princess Dorothea Charlotte Karin of Hesse [1934-2002]
[4c] Prince Karl Adolf Andreas of Hesse [born 1937]
[4d] Prince Rainer Christoph Friedrich of Hesse [born 1939]
[4e] Princess Clarissa Alice of Hesse [born 1944]
[4f] Prince Welf Ernst August Andreas Philipp Georg Wilhelm Ludwig Berthold of Hanover [1947-81]
[4g] Prince Georg Paul Christian of Hanover [born 1949]
[4h] Princess Friederike Elisabeth Victoria Luise Alice Olga Theodora Helene of Hanover [born 1954]