The collection Mammelsdorf which is named to the merchant Julius Mammelsdorf (1839-1902) is the second important collection of the Mannheim University Library. Mammelsdorf was born in Mannheim, attended the local secondary school and completed a trade apprenticeship.
His first professional position led him to Prague. He joined the company of Heinrich Schliemann in Petersburg and acquired a fortune by speculating during the American Civil War. His next position took him to Paris where he became a member of the Bank Comptoir National d' Escompte de Paris which is a predecessor of today's BNP Paribas. In the following years he represented this company in Saigon, Hong Kong and most recently in Yokohama. Due to the German French War in 1870/71 he had to leave the French bank and eventually found a job at Deutsche Bank whose branch in Yokohama he headed for a short term.
His last professional position led him to Mexico and he was a member of the board of the Banco Nacional Mexicano from 1882 to 1885.
Due to his economic activities he won a fortune and acquired numerous books and art objects. In his book collection of books are numerous relevant title for the Mexican history and culture. Mammelsdorf bought these titles during his stay in monasteries which were in a difficult economic situation. The title of the collection reflect inter alia the European conquest of Mexico reflected in the Spanish-speaking historiography from the 16th to the 19th century ranging from Francisco López de Gómara to José Fernando Ramir.