Born in Fermany in 1675; died in 1731.
ch:person=18049653
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<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18049653/ |title=Johann Cyriak Hackhofer |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=28 March 2024 |publisher=Smithsonian Institution}}</ref>