Isak Mändl geb. ~1780 in Göding according to Deutscher Verein für die Geschichte Mährens und Schlesiens.

Isak married Anna Stiasny (1792-1836), probably an older daughter of David Stiasny (1765-1808 April 25) and wife Susanna H---, who lived in Göding Haus #192 (three daughters born there in 1796, 1798, 1805 can be seen in Czech Jewish Registers Hodonin Births, Marriages, Deaths N 1783-1833 O 1802-1833 Z 1807-1833; David Stiasny's death appears in the same volume, Image 11/21).

In 1809, the first child of Isak and Anna to appear in the Göding/Hodonin register (as a death) was born. Their first surviving child was Júly b. "9ber" (November) 2, 1811 born at Haus #192.