Karl Christian Friedrich Pfizer (German: [kaʁl ˈpfɪtsɐ]; March 22, 1824 – October 19, 1906), known as Charles Pfizer, was a German-American businessman and chemist who co-founded the Pfizer pharmaceutical company with his cousin, Charles F. Erhart, in 1849, as Chas. Pfizer & Co. Inc.
Albert Friedrich Veiel (8 June 1806 – 2 August 1874) was a German dermatologist who was a native of Ludwigsburg.
He studied at the Universities of Tübingen and Paris, and in 1829 earned his medical doctorate. In 1837 at Cannstatt, he founded the first in-patient dermatological clinic in Germany. The clinic was called the Heilanstalt für Flechtenkranke, and with orthopedist Jakob Heine (1800–1879) and others, Veiel was a catalyst in making Cannstatt an important center for medical treatment. The clinic attracted numerous celebrities and members of European aristocracy.