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.
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.