Royal Profile: Prince Sébastien of Luxembourg

1. Prince Sébastien Henri Marie Guillaume. Prince of Luxembourg, Prince of Nassau and Bourbon-Parma was born 16 April 1992 at  the Maternity Grande-Duchesse Charlotte in Luxembourg {Source}.
2. His godparents were:
1. Prince Guillaume, Hereditary Grand Duke (his brother)
2. Princess Astrid, Archduchess of Austria-Este (1st cousin 1x removed)
3. He is the youngest of The Grand Duke and Grand Duchess's five children{Source}.
4. He has 4 siblings{Source}:
1. Prince Guillaume, Hereditary Grand Duke
2. Prince Felix
3. Prince Louis
4. Princess Alexandra
5. He also has two sisters-in-law and one upcoming sister-in-law{Source}:
1. Princess Stephanie, Hereditary Grand Duchess
2. Princess Tessy
3. Claire Lademacher
6. He was named:
1. Sébastien: likely a name his parents liked
2.  Henri: For his father
3.  Marie: a popular name with Catholic royalty
4.  Guillaume: likely for his brother and godfather
7. For his 18th birthday, he was given the Order of the Golden Lion of the House of Nassau{Source}
8. He was also given the  Grand Cross of Order of Adolphe of Nassau
9. Prince Sébastien fluent in:
1. Luxembourgish
2. French
3. German 
4. English
5. He also has a good knowledge of Spanish{Source}.
10. He attended the following schools{Source}:
1. St. George's International School (Luxembourg)
2. Summer Fields School(United Kingdom)
3. Ampleforth College (UK)
4. International School of Luxembourg (international baccalaureate, 2011)
5. University studies in the US somewhere, where he is studying "...Marketing & Communications..."{Source}
11.  Prince Sébastien accepted the patronage of the Federation of Luxembourg Swimming and Lifesaving{Source}.
12. He likes to  go rock climbing, skiing, swimming and play rugby{Source}
13. He was selected as a starter on the Luxembourg National Team, and plays rugby at his university {Source}
14. He is also a keen traveler, and likes art {Source}.
15. He shares a birthday with his father.
16. He is exactly 1 year and 2 months younger than his only sister.
17. He is approximately 10 years, 5 months and 5 days younger than his eldest brother.
18. He is of Cuban {Source}, French, German, Portuguese, German, Swedish, Danish & Belgian descent.
19. Presently, through his father, he is related to every current reigning monarch in Europe.
20. At birth, he was 4th in line for the throne, and then became 3rd with the abdication of his brother Louis in 2006, and was returned to 4th place once the equal-rights to the throne kicked in June 2011.
21. His full title and style is: Prince Sébastien Henri Marie Guillaume, Prince of Luxembourg, Prince of Nassau and of Bourbon-Parma {Source}