Franz Schweigger-Seidel
Franz Schweigger-Seidel was a German physiologist born in Halle an der Saale. He was the son of chemist Franz Wilhelm Schweigger-Seidel.
In 1858 he obtained his doctorate from the University of Halle with a dissertation titled Disquisitiones de callo. Afterwards he served as an assistant to Rudolf Heidenhain at the physiological institute in Breslau, and from 1865 was an assistant to Carl Ludwig at the University of Leipzig. In 1866 he received his habilitation, and during the following year became an associate professor at Leipzig.
His name is associated with "Schweigger-Seidel sheaths", which are spindle-shaped sleeves that cover penicillar arterioles of the spleen.