Other longstanding Greek populations can be found from southern Italy to the Caucasus and southern Russia and Ukraine and in the Greek diaspora communities in a number of other countries.Today, most Greeks are officially registered as members of the Greek Orthodox Church.
Meanwhile, party-loving Astrid - who with her sister Davina has been dubbed one half of the 'The hardcore sisters' - was spotted in the back of a car with Harry entering Clarence House by a rear gate in the early hours of the morning in 2009.
A month later it emerged that Harry had attended an illegal rave with the Harbord sisters and 400 other revellers in a repossessed office block in Whitechapel, East London, and the prince left the ‘Dress2Sweat’ event at 1.30am with Miss Harbord.
In December 2012, Olympia shared a glimpse at her skiing holiday in the mountain town, where she rode on a sled with her cousin Talita von Furstenberg, 16, whose grandmother is designer Diane von Furstenberg.
Marie-Chantal has a long history of associating with the rich and famous; before she married into the royal family, the London-born blonde - whose father was duty-free shopping co-founder Robert Warren Miller - worked for Andy Warhol.
Harry is thought to be on cordial terms with his former long-term ex-girlfriend Chelsy Davy and Cressida Bonas, with whom he had his most recent relationship, and the presence of both Natalie and Astrid had onlookers wondering how the royal manages to stay on such good terms with his former flings.