I have received an old hand-written document that was done in 1957 by a distant cousin of mine. In it it lists German cousins in Luxembourg. I'm assuming due to the period of time that's passed that these people are probably deceased but wonder if anyone recognizes the name and could get me in touch with any descendants. Any help would be greatly appreciated.

(Pardon the spelling - the writing is quite faint)

Monsiner et Madame Jean Chleringer-Siegler
Niedercorn?
3 Rue du Verger
Luxembourg