HRH Prince Nikolaos was born on 1 October 1969, in Rome, Italy. His parents, TM King Constantine and Queen Anne-Marie, had moved there in 1967. In 1975 the family settled in London, where Prince Nikolaos was home-educated for six years. He then attended the Hellenic College of London.

In 1988 he began his studies in International Relations at Brown University in Providence, Rhode Island, focusing on Diplomacy and National Security. During his sophomore year, he took a sabbatical to join the British Army on a Short Service Limited Commission, serving as 2nd Lieutenant with the Royal Scots Dragoon Guards.

Upon his college graduation (1993), Prince Nikolaos moved into TV production for Fox News in New York. He returned to London in 1995 to work in the foreign exchange options department of NatWest Markets. From 1997 to 2003 he worked in King Constantine’s Family Office. Since then he has been active in business consulting.

An avid photographer for all his life, Prince Nikolaos has passionately dedicated himself to photography since 2013. He prints his works on a number of materials, including Giclee Fine Art Paper; Fine Art Sublimation print on HD aluminium panel; and has pioneered a technique of printing on marble.

In November 2015 he exhibited his work for the first time at Christie’s in London, UK. In March 2016 his photography was featured at The New York Times “Art for Tomorrow” Conference in Doha, Qatar. A selection of his photographs were also featured in the book “A Taste of Greece”, published by teNeues. In June 2018, Prince Nikolaos had his first solo museum exhibition at the Hellenic Museum in Melbourne. Prince Nikolaos was recently selected, according to the recommendations of Philippe Starck Studio, along with 6 other photographers, to exhibit their photographs in Spain, at La Almazara.

Prince Nikolaos sits on the Board of Knightsbridge Schools International, established in 2008 to develop and operate a network of international schools around the world. He is a special advisor to the board and an active volunteer of Axion Hellas, a Greek non-profit organization supporting local communities on remote islands. Prince Nikolaos and his wife Princess Tatiana (née Tatiana Blatnik) married in 2010. Three years later, they moved to Athens, Greece, where they currently reside.