A career soldier, Prince Andrew began military training at an early age, and was commissioned as an officer in the Greek army.

His only son, Philip, served in the British navy during World War II, while all four of his daughters were married to Germans, three of whom had Nazi connections.

[4] He attended cadet school and staff college at Athens,[5] and was given additional private tuition in military subjects by Panagiotis Danglis,[6] who recorded that he was "quick and intelligent".

[9] In 1902, Prince Andrew met Princess Alice of Battenberg during his stay in London on the occasion of the coronation of Edward VII, who was his uncle-by-marriage and her grand-uncle.

[10] The following day two religious wedding services were performed: one Lutheran in the Evangelical Castle Church, and another Greek Orthodox in the Russian Chapel on the Mathildenhöhe.

In 1909, the political situation in Greece led to a coup d'état, as the Athens government refused to support the Cretan parliament, which had called for the union of Crete (still nominally part of the Ottoman Empire) with the Greek mainland.

[12] A few years later, at the outbreak of the Balkan Wars in 1912, Andrew was reinstated in the army as a lieutenant colonel in the 3rd Cavalry Regiment,[13] and placed in command of a field hospital.

[22] Refusing to put his men in undue danger (suffering lack of food and ammunition),[23] Andrew followed his own battle plan, much to the dismay of the commanding general, Anastasios Papoulas.

[25] The Greek defeat in Asia Minor in August 1922 led to the 11 September 1922 Revolution, during which Prince Andrew was arrested, court-martialed, and found guilty of "disobeying an order" and "acting on his own initiative" during the battle of the previous year.

[27] The family settled at Saint-Cloud on the outskirts of Paris, in a small house loaned to them by Andrew's wealthy sister-in-law, Princess George of Greece.

[29] In 1930, Andrew published a book entitled Towards Disaster: The Greek Army in Asia Minor in 1921, in which he defended his actions during the Battle of the Sakarya, but he essentially lived a life of enforced retirement, despite only being in his forties.

[31] On the French Riviera, Andrew lived in a small apartment, or hotel rooms, or on board a yacht with Countess Andrée de La Bigne.

[35] During World War II, he found himself essentially trapped in Vichy France, while his son, Prince Philip, fought on the side of the British.

[4] Andrew was at first buried in the Russian Orthodox church in Nice, but in 1946 his remains were transferred, by the Greek cruiser Averof, to the royal cemetery at Tatoi Palace, near Athens.