Jakob married Maria Katharina Rörich about 1735. Maria (daughter of Veit Jakob Rörich and Maria Katharina Heyl) was born on 17 Aug 1709 in Kapsweyer, Pfalz; died on 13 Mar 1786 in Kapsweyer, Pfalz. [Group Sheet] [Family Chart]

1. Jakob Fischer was born on 13 Sep 1736 in Kapsweyer, Pfalz; died on 6 Nov 1790.
2. Johannes Georg Fischer was born on 19 Jul 1738 in Kapsweyer, Pfalz.
3. Anna Eva Fischer was born on 19 Jul 1738 in Kapsweyer, Pfalz.
4. Maria Eva Fischer was born on 9 Mar 1743 in Kapsweyer, Pfalz.
5. Maria Jakobea Fischer was born on 17 Oct 1744 in Kapsweyer, Pfalz; died on 14 Jul 1759 in Kapsweyer, Pfalz.
6. Johannes Martin Fischer was born on 28 May 1747 in Kapsweyer, Pfalz; died on 13 Dec 1818 in Kapsweyer, Pfalz, Bayern.
7. Maria Margaretha Fischer was born on 20 Sep 1749 in Kapsweyer, Pfalz.
8. Eva Fischer was born in 1751 in Kapsweyer, Pfalz.