[1]: 17 Upon Mayer Amschel's death in 1812, his eldest son Amschel (1773–1855) took over the firm's leadership and in 1813 commissioned a new building at Fahrgasse 146 (corner of Fahrgasse and Judengasse) from the municipal building inspector Philipp Jakob Hoffmann [de].
In 1822 the five brothers were awarded the hereditary title of Baron by Emperor Francis I of Austria, after which the name of the Frankfurt firm was changed to “M.A.
Amschel Mayer von Rothschild concentrated on serving the financial needs of various German princes and monarchs, including maintaining the relationship that his father had built with the Electorate of Hesse together with Hessian official Carl Friedrich Buderus von Carlshausen [de].
M. A. Rothschild & Söhne was thus able to displace the Frankfurt-based Bethmann family as the leading issuer of government bonds in the German-speaking region between 1820 and 1830.
[1]: 22, 56 Most of the bank's archives were destroyed in 1901 on the orders of the surviving members of the Rothschild family.