Hello,renfieldette and welcome to the royal forums!
For your question...he is son of Duke Henri and Grand Duchess Maria Teresa.He has got one sister and 3 brothers.The official religin in Luxembourg is Catholic and so he believe in this.I think he speak English,French,his own language and a bit Spanish,but I'm not so sure...sorry for my english,is not good and if you have any questions welcome! :)
I'll be happy to help with what I can...bye for now! :)
The important thing is not to be bitter over life's dissapointments.Learn to let go of the past and recognise that every day won't be sunny.But when you find yourself in the darkness of despare,rememmber that it is only in the black of night you can see stars,and those stars will lead you home!So don't be afraid to make mistakes,to stumble and fall,cause most of the time the greatest rewards come from doing the things that scare you the most!!! :)