original: Hartmann died from an aneurysm in 1873.
simplifications: Hartmann died in 1873. Hartmann died from an aneurysm. The year was 1873. Hartmann died in 1873. The cause was an aneurysm. Hartmann died in 1873. It was from from an aneurysm. Hartmann died in 1873. An aneurysm killed Hartmann in 1873. Hartmann passed away from an aneurysm. This took place in 1873. Hartmann died  in 1873 from an aneurysm. In 1873, Hartmann died from an enlargement of an artery. In 1873, Hartmann died from an aneurysm.