David Chytraeus or Chyträus (26 February 1530, Ingelfingen – 25 June 1600, Rostock) was a German Lutheran theologian and historian.His real surname was Kochhafe, which in Classical Greek is χυτρα, from where he derived the Latinized pseudonym "Chyträus".Chytraeus was professor of the University of Rostock and one of the co-authors of the Formula of Concord.
Reference: David Chytraeus. - Wikipedia, the free encyclopedia.