Austrian businessman, Karl Wlaschek has an estimated net worth of $4.1 billion as of May 2015 according to Forbes. Wlaschek is the fifth richest person in Austria. He is the founder of the Austrian supermarket chain BILLA. In 1996, he sold it to the German REWE Group for about $1 billion. Since then he has invested heavily in prime Austrian real estate and is now one of the largest private real estate owners in the country. In September 2011, his real estate company Amisola bought one of the best known hotels in Austria, the Schlosshotel Velden Carinthia. Karl Wlaschek plans to marry Rikki Schenk.