Prince Charles of Luxembourg enjoyed a milestone moment this week when his parents, Hereditary Duke Guillaume and Hereditary ...

Prince Robert, who is the first cousin of Grand Duke Henri of Luxembourg ... including snapshots of Robert posing with his brother Alexander and his sister Charlotte, as well as his canine ...

Joining the prince for his party? His older brother, Prince Charles: the two boys wore matching navy quarter zips, looking the spitting image of their father, Hereditary Grand Duke Guillaume, who was ...