Question: Silent-Night-Chapel is a monument to the Christmas carol and composer born what day?
Sentence (from "Silent-Night-Chapel"): The Silent Night Chapel (Stille-Nacht-Kapelle) is located in the town Oberndorf bei Salzburg in the Austrian province of Salzburg and is a monument to the Christmas carol "Silent Night" and its librettist, Joseph Mohr and composer, Franz Xaver Gruber.
Relevant evidence: Yes