Hans Hautsch
Hans Hautsch (January 4, 1595 – January 31, 1670) was a German toolmaker and inventor from Ledergasse, Nuremberg. His father, Antoni (1563–1627), and grandfather, Kilian (died 1570), were both toolmakers.
He married Magdalena (born 1603), the daughter of carpenter Jacob Flexlein, on June 25, 1621. They had a daughter and five sons, including Georg (born 1624, also a toolmaker), Gottfried (1634–1703), and Johann Andreas (born 1638). Gottfried Hautsch invented the conical touch hole for muzzle-loading guns, whereby the pan closed itself, cutting loading time by two thirds.