1,371 Followers, 4 Following, 66 Posts - See Instagram photos and videos from Constantine-Alexios Of Greece (@alexios.greece) His family relocated to London so he could attend the Wellington College in Berkshire, England. 913 Likes, 15 Comments - The Hellenic Royal Family! ... Arthur's Instagram … (@royal_greece) on Instagram: “His Royal Highness Prince Constantine Alexios of Greece and Denmark, recently on HRH’s personal…” Prince Constantine-Alexios in an Instagram post in March 2017 (Prince Constantine-Alexios / Instagram) Prince Constantine-Alexios Facts. The 20-year-old is now enrolled in Georgetown University in Washington D.C. and is very passionate about photography and art, as seen on his Instagram page. Prince Constantine Alexios of Greece and Denmark (who kindly followed us) is the third in line to the Greek throne, only after his father Pavlos, the Crown Prince of Greece, and his grandfather, His Majesty former King Constantine II of the Hellenes (whom the 17yo prince is named after). 150.4k Followers, 889 Following, 5 Posts - See Instagram photos and videos from Constantine Alexios (@alexiosgreece) Who he is Known as "Tino" to friends and family, Prince Constantine Alexios was born in New York and raised in England, where he attended Wellington College in Berkshire. Prince Constantine-Alexios of Greece and Denmark. He's the son of Lady Sarah Chatto and Daniel Chatto.Prince Constantine-Alexios of Greece is the son of Crown Princess Marie-Chantal and Crown Prince Pavlos of Greece.Princess Mette-Marit had Marius from a previous relationship before she met Prince Haakon, but he was happy to welcome then three-year-old Marius into the family.She has modelled for the likes of Teen Vogue and Dolce & Gabanna, and is seen here with fellow royal Princess Talita Natasha von Fürstenberg.Arthur Chatto turned heads when he arrived at Prince Harry's wedding to Meghan Markle looking very dapper in his three-piece suit.Samuel Chatto is the son of Lady Sarah Chatto and the grandson of Princess Margaret and Antony Armstrong-Jones, 1st Earl of Snowdon.The 21-year-old attends Georgetown University in Washington D.C. and is a familiar face on the European royal circuit.She's 39th in line to the British throne and has modelled for Dolce and Gabbana.Prince Achileas-Andreas of Greece, 19, the third child of Crown Princess Marie-Chantal of Greece and Crown Prince Pavlos of Greece.As well as being a royal, she is currently being groomed to one day take over the Diane von Furstenberg business her fashionista grandmother started decades ago.Prince William is godfather to Prince Constantine-Alexios, who is known as 'Tino'.She studied fashion in Paris and has interned at the likes of Louis Vuitton and Vogue. Today Prince Constantine-Alexios, the eldest son and second child of Crown Prince Pavlos of Greece and Crown Princess Marie Chantal (née Miller), marks his twenty-first birthday.