29.08.1925
The other people are relatives. The photo was shoot at the Niederaichbach castle.
Did Louis Philippe live with the Luxemburg family? He died there in 1933. It's a pity that his wife Elisabeth isn't pictured - or is she the woman in black? It's just too blurry.
It looks like a monk..hmm
Louis lived there with his family. I think they visited the family. On the homepage of Niederaichbach is a sweet photo of Anselm

After Louis death, Elisabeth moved away.