Theo Albrecht the United States. Aldi and Trader Joe's, while owned by the brothers, have separate and distinct ownership and operations. Theo Albrecht and his brother Karl revolutionized the German grocery market with a low-cost business model. They had developed the supermarket as an outgrowth of their mother's small grocery store, which she had opened in 1913, in Essen, after Theo’s father had developed emphysema as a miner. Theodor learned the grocery business from his mother, in order to escape the fate of his father in the mines. He and his brother Karl developed Albrecht Diskont, one of Europe’s largest chains of
GB (supermarket) and Wallonia were sold to an independent franchise together with Champion supermarkets, which became re-branded, as "Carrefour Market-Groupe Mestdagh". As of May 2013, there are 58 GB supermarkets left in Belgium, 28 Champion stores in Wallonia, and 431 GB stores have already become Carrefour Market. GB Group had several different supermarket stores: GB (supermarket) GB ("Grand Bazar") was a Belgian supermarket chain, until 2000 owned by the GIB Group when it was taken over by the Carrefour Group. In 1958 the first Super GB is created and opened. In 1961 the first GB hypermarkets are created under the name of