Johann Nepomuk Hiedler (19 March 1807 – 17 September 1888) was the maternal great-grandfather[1] and possibly also the paternal grandfather of Adolf Hitler.
Some people consider this name as evidence that Nepomuk (and therefore his great-grandson Adolf Hitler) had Czech ancestry.
Johann Nepomuk's wife, Eva Maria, died 28 December 1873, at the age 81 in Spital, Weitra.
Johanna's daughter, Nepomuk's granddaughter, Klara Pölzl, would eventually become the third wife of Alois Hitler.
[9] However, it is also possible that Johann Nepomuk himself was, in fact, Alois' natural father but could not acknowledge this publicly due to his marriage.