In Wikipedia you are able the read:
The house, which was a guest house, called Zum Schwarzen Adler is under Monument protection. It has a baroque Fassade with a fresco of Saint Wolfgang from the middle of the 18th century and a iron grid.
In the book "Das Mondseeland einst und jetzt" from Franz Wendl on page 12 a Picture of the H. Odilo Street is pictured from the year 1900. On this pciture one can see Saint Wolfgang. It is probably connected to the pilgramage street that leads by this house. When the house was renovated they repainted the Picture.