The Lavater brothers were Johann Heinrich Lavater (baptised 21 February 1611 – 9 June 1691) and Johann Jacob Lavater (1594–1636), both Swiss physicians and naturalists.
Johann Heinrich Lavater was a professor at theCarolinum, Zürich, here shown in front of the Grossmünster.Sepia drawing by Emil Schulhess, 1835
The brothers were the sons of Heinrich Lavater, also a physician, and a professor of physics and mathematics inZürich.[1][2]
Johann Heinrich gained his doctorate inBasel in 1647,[3] and became a physician inBern in 1653. In 1668 he prepared the Zürich Ordinance aboutplague.[4] He became professor of medicine and natural history at theCarolinum, Zürich.[1]
Little is known of Johann Jacob, except that he too was a physician and a naturalist.[1]
^Mörgeli, Christoph. "Lavater, Heinrich".Historisches Lexikon der Schweiz (in German).
^"Works of Lavater, Johann Heinrich" (in German). Verzeichnis der im deutschen Sprachraum erschienenen Drucke des 17. Jahrhunderts (database). Retrieved12 October 2017.
^Lavater, Johann Heinrich (1668).Neue Pestordnung der Statt Zürich: samt einem kurzen Bericht, wie man sich mit Gottes hülffe vor diser Krankheit bewahren, und dieselbige heilen sölle (in German). Zürich.