Markus married Magdalena Fröhlich about 1797. Magdalena was born in 1776 in Bundenthal, Pfalz, Bayern; died on 22 Mar 1815 in Bundenthal, Pfalz, Bayern. [Group Sheet] [Family Chart]

1. Johanna Zwick was born on 10 Sep 1798 in Bundenthal, Pfalz; was christened on 11 Sep 1798 in Bundenthal, Pfalz; died on 27 Feb 1840 in Bundenthal, Pfalz, Bayern.
2. Johannes Philipp Zwick was born on 10 Mar 1801 in Bundenthal, Pfalz; was christened on 11 Mar 1801 in Bundenthal, Pfalz; died on 12 Mar 1873 in Bundenthal, Pfalz, Bayern.
3. Johannes Joseph Zwick was born on 9 Mar 1804 in Bundenthal, Pfalz; was christened on 10 Mar 1804 in Bundenthal, Pfalz.
4. Anna Maria Zwick was born on 22 Jan 1807 in Bundenthal, Pfalz, Bayern; died on 11 Aug 1870 in Bundenthal, Pfalz, Bayern.