Peter Gustav Schaeben (1815–1885), since 1829 assistant and employee of the famous “monastery woman” Maria Clementine Martin (1775–1842), inherited the A. Moras & Comp. Together with his wife Anna Catharina, born Grass (1820–1889), who, like her husband, had worked in the company, he expanded the company and soon sold his fragrance and medicinal waters produced in Cologne all over the world.

The two sons Otto (1853-1932) and Robert (1862-1944) took over the management of the company in 1889. Until the outbreak of the First World War, they played an important role in the city’s economic and social life with their wives Elise, born Boecker (1852–1910) and Maria Clementine, born Dorff (1862–1935). After the war, the two sons Roberts, Wilhelm (born 1888) and Otto Schaeben (1889–1955), took over the company as the third generation and further expanded the “Klosterfrau” brand. However, they failed to save the company through the difficult times of the global economic crisis, and in 1933 they lost the company.

After the death of Gustav Schaeben, his widow had the family crypt erected on Melaten in honor of her husband. In the family crypt, Peter Gustav and his wife, their four children with their spouses and two of Robert Schaeben’s six children, namely Clementine (1893) and Otto (1889–1955), who died as a baby, found their final resting place.