Leonhard married Maria Katharina Seebach on 4 Jul 1790 in Hinterweidenthal, Pfalz. Maria (daughter of Jakob Balthasar Seebach and Katharina Elisabetha Brödel) was born on 21 Jan 1766 in Hinterweidenthal, Pfalz. [Group Sheet] [Family Chart]

1. Elisabetha Dietz was born on 14 Nov 1790 in Hinterweidenthal, Pfalz; was christened on 14 Nov 1790 in Hinterweidenthal, Pfalz.
2. Georg Heinrich Dietz was born on 26 Jul 1792 in Hinterweidenthal, Pfalz; was christened on 29 Jul 1792 in Hinterweidenthal, Pfalz.
3. Johannes Jakob Dietz was born on 28 Sep 1794 in Hinterweidenthal, Pfalz; was christened on 28 Sep 1794 in Hinterweidenthal, Pfalz; died on 28 Feb 1838.
4. Georg Andreas Dietz was born on 27 Aug 1797 in Hinterweidenthal, Pfalz, Bayern; was christened on 27 Aug 1797 in Hinterweidenthal, Pfalz, Bayern.
5. Anna Maria Dietz was born on 2 Nov 1799 in Hinterweidenthal, Pfalz.
6. Johannes Adam Dietz was born on 4 Apr 1802 in Hinterweidenthal, Pfalz, Bayern; was christened on 4 Apr 1802 in Hinterweidenthal, Pfalz, Bayern.
7. Katharina Dietz was born on 22 Apr 1804 in Hinterweidenthal, Pfalz; was christened on 22 Apr 1804 in Hinterweidenthal, Pfalz.