Died aged 62 years so born 1808-09.

JRI-Poland also records Fanny's marriage to Michel Zernick, son of Mendel in 1833. Michel was aged 25 years, so born 1807-08, which matches Mendel's date of birth calculated from his age at death. Other records name children born to Mendel and Fanny geb. Boehm. It is possible that the record has transposed the father's and son's name.