_. The engagement has been announced between Prince Philippos of Greece [born in London 26 April, 1986], third son and fifth child of Constantine II, King of Greece [born 2 June, 1940], by his wife Queen Anne-Marie Dagmar Ingrid [born 30 Aug 1946], nee Princess of Denmark, and Nina Nastassja Jade Flohr [born 22 January, 1987], daughter of Thomas Flohr [born 7 March, 1960], by his former wife, nee Katharina Konečný.
King Constantine reigned from 6 March, 1964 until 1 June, 1973 when he was deposed by the Greek Junta. However, once a King, always a King.
Prince Philippos is a godson of the late Diana, Princess of Wales. He is a descendant of the British Royal Family, from Queen Victoria, both paternally and maternally.
Two lines of descent:-
Queen Victoria -> Victoria, Princess Royal -> Wilhlem II, Emperor of Germany -> Victoria Luise of Prussia ->Frederika of Hanover -> Constantine II of Greece -> Philippos of Greece
Queen Victoria -> Arthur Duke of Connaught -> Margaret of Connaught ->Ingrid of Sweden ->Anne-Marie of Denmark -> Philippos of Greece.