Karl Albrecht Jr. Karl Albrecht Jr. Karl Albrecht Jr. (born 1948) is a German billionaire, and the son of Karl Albrecht, who founded the discount supermarket chain Aldi with his brother Theo. Albrecht worked for Aldi Süd in various roles until his resignation due to a cancer diagnosis (from which he subsequently recovered). He and his sister Beate Heister control the family trust, the Siepmann Stiftung (named for their mother), which, in turn, controls Aldi Süd, the source of their joint fortune. Together with Heister, he has a net worth of US$25 billion, as of December 2018. He is married to Gabriele Mertes,
Plus (supermarket) The Edeka Group and the Tengelmann Group entered a joint venture to acquire the Plus supermarket chain on November 16, 2007, which resulted in 70% of Plus supermarkets being owned by the Edeka Group and 30% owned by the Tengelmann Group. As of January 2009, the stores in the Plus supermarket chain owned by the Edeka group were remodelled into Netto Marken-Discount supermarket chain branches, while the Tengelmann Group's supermarkets were bought by others. Plus (supermarket) Plus was a German multinational discount supermarket chain founded in 1972. It operated 2,840 stores in Germany with an approximate 27,000 employees and about