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,
Theo Albrecht hobbies such as golf and pastimes including the collecting of antique typewriters. Theodor had, as do members of the Albrecht family now, a highly secure estate overlooking the Ruhr valley. Obsessed with frugality, Theodor is said to have collected and used pencil stubs frequently. He was also known to wear cheaper, poorly fitting suits and preferred plain meals with many potatoes. When he was asked to approve the plans for a new store in the Netherlands, he stated that the design was good but the paper it was drawn on was too thick: "If you use thinner paper we will