| Children | 
|  | 1. Gasparus Mertens,   b. Abt 16 Apr 1648   d. Yes, date unknown |  |  | 2. Petrus Mertens,   b. Abt 17 Jan 1650   d. Yes, date unknown |  |  | 3. Lucas Mertens,   b. Abt 25 Nov 1651   d. Yes, date unknown |  |  | 4. Maria Mertens,   b. Abt 24 Aug 1653   d. Yes, date unknown |  |  | 5. Elisabeth Mertens,   b. Abt 8 Sep 1655   d. Yes, date unknown |  |  | 6. Anna Mertens,   b. Abt 5 Mar 1658   d. Yes, date unknown |  |  | 7. (1) Eleonora Mertens,   b. Abt 6 Jan 1660   d. Bef 23 Dec 1663 (Age < 3 years) |  |  | 8. Joannes Mertens,   b. Abt 9 Dec 1660   d. Yes, date unknown |  |  | 9. (2) Eleonora Mertens,   b. Abt 23 Dec 1663   d. Yes, date unknown |  |