His Royal Highness Prince Sébastien of Luxembourg was born on 16 April 1992 at the Grand Duchess Charlotte Maternity Hospital in Luxembourg. He is the youngest of Grand Duke Henri, with whom he shares his birthday, and Grand Duchess Maria Teresa‘s five children. He has three older brothers, Prince Guillaume, Hereditary Grand Duke of Luxembourg, Prince Félix, and Prince Louis. He has one sister, Princess Alexandra.
His full name and title are His Royal Highness Prince Sébastien Henri Marie Guillaume, Prince of Nassau. He is sixth in line to the throne after his older brother Prince Louis gave up the succession rights of himself and his children in 2006.
When he was christened in the Roman Catholic Church on 28 May 1992, his godparents were announced as his eldest brother, Hereditary Grand Duke Guillaume and Princess Astrid of Belgium.
His Royal Highness attended nursery school in Angelsberg, Luxembourg; afterwards, for his primary education, he was enrolled at St George’s International School. He then attended Sunningdale School and Ampleforth College for a couple of years in the United Kingdom as an exchange student. Prince Sébastien then graduated with a Baccalaureate from the International School of Luxembourg. He chose to pursue his university education in the United States at the Franciscan University of Steubenville in Ohio. While there, he was a member of the school’s rugby team. He graduated in December 2015 with a Bachelor of Science in Marketing and Communication.
He is currently at Sandhurst Academy in the United Kingdom undergoing training alongside Jordan’s Crown Prince Hussein. He began the 44-week training course in September 2016. His grandfather, Grand Duke Jean; father, Grand Duke Henri; and his eldest brother, Prince Guillaume attended the academy in the past. His training will come to a conclusion on 11 August with the Sovereign’s Parade.
At 25, His Royal Highness currently does not participate in many royal events due to his schooling. However, he does when time allows and is always present at the National Day celebrations and the closing of the Feast of the Octave of Our Lady of Luxembourg. As an avid sportsman, he is the patron of Luxembourg Federation of Swimming and Lifesaving.
In his spare time, the Prince is known to partake in climbing, skiing, swimming and rugby. In the past, he was even selected as a member of the Luxembourg national rugby team. He also enjoys art, travelling and learning about different cultures. He speaks French, German, Luxembourgish and English fluently and is known to understand some Spanish.
Prince Sébastien is a Knight of the Order of the Gold Lion of the House of Nassau and holds the honour of Grand Cross of Order of Adolphe of Nassau.