9. Johann Mathias Cohnen (Joannes Henricus Conen , Joannes Conradus Conen , Conradus ) was born in 1768 in Schleiden (D). He was christened on 8-01-1768 in Heinsberg (D). He died on 20-06-1829 in Schleiden (D).
Johann married Maria Sibilla Schmitz. Maria was born in 1779 in Schafhausen, Heinsberg (D). She was christened on 26-02-1779 in Heinsberg (D). She died on 15-09-1856 in Schleiden (D).
They had the following children:
+ 13 M i Johann Joseph Cohnen was born on 29-05-1804. 14 M ii Caspar Cohnen. 15 M iii Johan Heinrich Cohnen.