Esaias Fleischer

Esaias Fleischer (25 October 1633 – 5 February 1697) was a Danish priest.

He was a son of pharmacist Esaias Fleischer, and of Silesian roots. He studied at Sorø Academy before enrolling at the University of Copenhagen in 1652. He was influenced by Niels Svendsen Kronich, but because of this he deviated too much from the state church, and was sentenced to lose his academic rights in 1655. He then studied at the University of Rostock, University of Strasbourg, University of Leiden and University of Oxford, and also stayed in France and Italy. He returned to Denmark in 1664, where his reputation had been restored, partly because of his connection to Hans Nansen. Esaias' maternal aunt was Nansen's wife.