Leonhard married Katharina Mertz on 24 Apr 1769 in Bruchweiler-Bärenbach, Pfalz, Bayern. Katharina (daughter of Theobald Mertz and Katharina Füg) was born in 1749 in Bundenthal, Pfalz; died on 21 Dec 1799 in Bruchweiler-Bärenbach, Pfalz. [Group Sheet] [Family Chart]