3 June 1908 in Alzey, d. 25 November 1991 in Mainz) was a German historian.
Petry was born into lawyer's family and grew up in Darmstadt.
Eine Breslauer Kaufmannsfamilie des 15. und 16.
The title of his thesis was Breslau und seine Oberherren aus dem Haus Habsburg 1526-1635.
Ein Beitrag zur politischen Geschichte der Stadt Breslau[1] From 1950 to 1973 he was working at the University of Mainz.