French missionary and botanist (1749-1836).
Johan Peter Rottler (June 1749 – 24 January 1836) was a Dutch missionary and botanist, most associated with the Danish Mission in Tranquebar and later Vepery, Chennai in southern India. He was born in Strasbourg, France in 1749, and studied at the local Gymnasium from the age of nine. He was influenced by the master of the school Dr Lorenz . In 1766 he joined the University of Strasbourg and studied for nine years. He was ordained, and went as a missionary to southern India in 1776 at the recommendation of Dr Freylinghausen of Halle. His first appointment along with Johann Wilhelm Gerlach was