Closs was born in Neumarkt in Steiermark, Austria, the child of a law official, Alois Closs, and his wife, Rosa (born Halm).
Suitable starting points for climbing the Zirbitzkogel are St. Anna and St. Wolfgang bei Obdach on the northern side and Neumarkt on the southern side.
Neumarkt in der Oberpfalz | Neumarkt | Neumarkt in Steiermark | Otto II, Count Palatine of Mosbach-Neumarkt | Neumarkt-Sankt Veit | Mautern in Steiermark | John, Count Palatine of Neumarkt |