Prince Andrew of Greece and Denmark
Prince Andrew of Greece and Denmark (Greek: Ανδρέας, romanized: Andréas; 2 February [O.S. 21 January] 1882 – 3 December 1944) was the seventh child and fourth son of King George I and Queen Olga of Greece. He was a grandson of King Christian IX of Denmark and the father of Prince Philip, Duke of Edinburgh.
Source: Wikipedia — Prince Andrew of Greece and Denmark (CC BY-SA 4.0)